Photos / Sounds

What

Toothpetal False Reinorchid (Habenaria floribunda)

Observer

abigailjarvis

Date

November 13, 2021 03:19 PM EST

Photos / Sounds

What

Leafless Beaked Lady Orchid (Sacoila lanceolata)

Observer

jbowers027

Date

May 2022

Description

roadside

Photos / Sounds

What

Waterspider Bog Orchid (Habenaria repens)

Observer

tpalmer

Date

May 18, 2022

Photos / Sounds

Observer

mdrndgtl

Date

June 18, 2022 12:37 PM EDT

Description

Found in my garden

Fungi

Photos / Sounds

What

Hongos (Kingdom Fungi)

Observer

ebirding

Date

June 2022

Photos / Sounds

What

Sedge Sacsmut (Testicularia cyperi)

Observer

rednat

Date

June 23, 2022 10:14 AM CDT

Description

Deer Park Prairie

Photos / Sounds

What

Saltmarsh Morning-Glory (Ipomoea sagittata)

Observer

cassievalenti

Date

June 23, 2022 11:08 AM EDT

Photos / Sounds

What

Cowpea Witchweed (Striga gesnerioides)

Observer

julievogel

Date

August 20, 2019 10:14 AM EDT

Photos / Sounds

What

Dodders (Genus Cuscuta)

Observer

naokitakebayashi

Date

May 26, 2021 10:54 AM AKDT

Description

Circle B. Bar Reserve.

Photos / Sounds

What

Cowpea Witchweed (Striga gesnerioides)

Observer

violetii

Date

August 12, 2020 10:29 AM EDT

Photos / Sounds

What

Florida Milkweed (Asclepias feayi)

Observer

brettbudach

Date

April 21, 2022 10:20 AM EDT

Photos / Sounds

What

Florida Butterfly Orchid (Encyclia tampensis)

Observer

clareguthrie

Date

June 2022

Photos / Sounds

What

Toothpetal False Reinorchid (Habenaria floribunda)

Observer

julievogel

Date

January 3, 2020 11:13 AM EST

Photos / Sounds

What

Spring Ladies' Tresses (Spiranthes vernalis)

Observer

julievogel

Date

April 30, 2021 02:26 PM EDT

Photos / Sounds

What

Feay's Palafox (Palafoxia feayi)

Observer

darrenoh

Date

October 3, 2020 05:23 PM EDT

Photos / Sounds

What

Northern Rotund-Resin Bee (Anthidiellum notatum)

Observer

squidpastry

Date

June 2022

Description

Bizarre, gummy "house" made of what I'm assuming to be dried sap or resin, with one occupant inside- I prodded the blunt end a little, and a roughly bee-esque insect (from what little I saw of it) backed out, butt-first (butt is indeed visible), and promptly flew away. I'll attach more images if I ever get pictures of the resident who presumably built this weird little gooey nest!

ID tentative- I only really had a good look at it's butt.

Photos / Sounds

Observer

ikhom

Date

June 8, 2022 11:27 AM EDT

Description

On last year herb stems at the base of Solidago. Apothecia are sessile, 1-1.2mm with yellow marginal hairs.
Asci 8-spored, biseriate, IKI+bb, croziers(+).
Ascospores hyaline, cylindrical, OCI=1-2, measured
(11.4) 11.9 - 14.4 (15.4) × (1.9) 1.91 - 2.1 (2.4) µm
Q = (5.6) 5.8 - 7.3 (8) ; N = 19
Me = 13.4 × 2 µm ; Qe = 6.6
Paraphyses lanceolate, without VBs.
Yellow pigment from marginal hairs dissolves in KOH.

Photos / Sounds

Observer

zacharysides

Date

June 3, 2022 12:20 PM CDT

Photos / Sounds

What

Pineland Jacquemontia (Jacquemontia curtissii)

Observer

opschneider

Date

May 20, 2022 11:50 AM EDT

Photos / Sounds

What

Rusty Grape (Vitis rufotomentosa)

Observer

saherron

Date

June 2022

Description

Carter Creek, recently burned sandhill.

Photos / Sounds

What

Webcaps (Genus Cortinarius)

Observer

ebirding

Date

May 28, 2022 04:32 PM CDT

Description

Maybe, CV ID.

Photos / Sounds

What

Fringe Lichens (Genus Heterodermia)

Observer

ebirding

Date

April 21, 2022 10:22 AM CDT

Description

Maybe, CV ID.

Photos / Sounds

Observer

ahuereca

Date

April 26, 2019 02:01 PM -05
Fungi

Photos / Sounds

What

Hongos (Kingdom Fungi)

Observer

ebirding

Date

May 22, 2022 06:22 PM CDT

Photos / Sounds

What

Jackson's Slender Caesar (Amanita jacksonii)

Observer

latoutdoors

Date

July 2, 2021 05:40 PM EDT

Photos / Sounds

Observer

kyle_klotz

Date

May 2022

Place

Texas, US (Google, OSM)

Photos / Sounds

What

Palmetto Tortoise Beetle (Hemisphaerota cyanea)

Observer

jvnna

Date

May 16, 2022 03:34 PM EDT

Photos / Sounds

Date

September 1, 2021 04:47 PM EDT

Description

Yes, I know its purple. See this post…I think its the same thing! (And NOT infected with Nectriopsis violacea as the color is too even). https://weirdandwonderfulwildmushrooms.blogspot.com/2016/05/when-is-fuligo-septica-purple-not-very.html?showComment=1630533311320&m=1#c4868940049623093232

Also, this source suggests F. septica var. rosea…. https://www.mycosphere.org/pdf/MYCOSPHERE_8_10_17.pdf

Photos / Sounds

What

Quince Rust (Gymnosporangium clavipes)

Observer

fffresh2heck

Date

May 10, 2022 07:03 PM EDT

Place

Lecanto (Google, OSM)

Photos / Sounds

What

Mangrove Saltmarsh Snake (Nerodia clarkii ssp. compressicauda)

Observer

abbyhastings

Date

May 2022

Photos / Sounds

Observer

jonathan_taylor

Date

May 9, 2022 11:23 AM EDT

Description

Growing on a Gumbo Limbo.

Photos / Sounds

Observer

khashagen

Date

May 2, 2022 09:05 AM CDT

Description

Poison Ivy

Photos / Sounds

Observer

mushdrywm

Date

April 2022

Photos / Sounds

Date

May 4, 2022 01:11 PM CDT

Photos / Sounds

What

Wood Mulberry (Bertia moriformis)

Observer

ikhom

Date

April 30, 2022 12:56 PM EDT

Description

On broken Betula branch on the ground. Perithecia black, superficial on decorticated wood.

Photos / Sounds

Observer

alblueheron

Date

April 28, 2022 03:09 PM EDT

Photos / Sounds

What

Oxalis Rust (Puccinia oxalidis)

Observer

alblueheron

Date

April 28, 2022 04:09 PM EDT

Photos / Sounds

Observer

ikhom

Date

April 15, 2022 01:30 PM EDT

Description

On Abies balsamea needles.
Asci 8-spored, 112-147x12x14um.
Ascospores aseptate, needle-shaped, measured
(86.6) 89.5 - 117.5 (128.1) x2-2.5 µm
Me = 103.8x2.3 µm

Tags

Photos / Sounds

Observer

brettjackson

Date

April 19, 2022 01:30 PM CDT

Description

On Fraxinus americana leaf, producing small conidia. Slides in LPCB

Photos / Sounds

What

Green Beetle Hanger (Complex Hesperomyces virescens)

Observer

drbh2o

Date

April 17, 2022 12:38 PM -05

Photos / Sounds

Observer

rogerbirkhead

Date

April 4, 2022 09:24 AM CDT

Description

Growing on dead Magnolia virginiana branch

Photos / Sounds

Observer

joe_alec_king

Date

March 2022

Photos / Sounds

Observer

huafang

Date

May 24, 2020 10:40 AM EDT

Photos / Sounds

What

Devil's Urn (Urnula craterium)

Observer

tasoulaharlan

Date

March 22, 2022 07:01 PM CDT

Photos / Sounds

What

Sweetleaf Gall (Exobasidium symploci)

Observer

sth0

Date

March 24, 2022 02:04 PM EDT

Photos / Sounds

What

Azalea Gall (Exobasidium vaccinii)

Date

March 23, 2022 11:16 AM EDT

Photos / Sounds

Observer

lillybyrd

Date

March 2022

Photos / Sounds

What

Pelt Lichens (Genus Peltigera)

Observer

lillybyrd

Date

March 2022

Photos / Sounds

What

Pinelitter Gingertail (Xeromphalina cauticinalis)

Observer

steven_dm

Date

March 16, 2022 02:39 PM EDT
Fungi

Photos / Sounds

What

Hongos (Kingdom Fungi)

Observer

steven_dm

Date

March 17, 2022 04:34 PM EDT

Photos / Sounds

What

Devil's Urn (Urnula craterium)

Observer

liraley

Date

March 20, 2022 01:52 PM CDT

Photos / Sounds

Observer

erikamonster

Date

March 14, 2022 12:33 PM EDT

Photos / Sounds

Observer

alan_rockefeller

Date

February 27, 2022 02:36 PM PST

Description

Growing on Chylismia cardiophylla ssp. robusta, https://www.inaturalist.org/observations/107733787.

Uredospores measure (31.7) 33.3 - 40.6 (41.4) × (27.3) 29.4 - 37.6 (39.8) µm
Q = 1 - 1.2 (1.4) ; N = 22
Me = 37.1 × 32.9 µm ; Qe = 1.1

Teliospores measure (46.2) 47.8 - 56.5 (57.6) × (27.9) 28.4 - 34.9 (36.2) µm
Q = (1.5) 1.54 - 1.8 (1.9) ; N = 25
Me = 52.2 × 31.7 µm ; Qe = 1.7

Photos / Sounds

Observer

aidancampos

Date

February 2022

Description

On fallen, decaying petiole of Sabal palmetto.

Photos / Sounds

What

Mulefat Rust (Puccinia baccharidis)

Observer

brettjackson

Date

February 15, 2022 02:58 PM CST

Description

Amphigenous on Baccharis halimifolia. More likely Puccinia baccharidis than P. pistorica, since the uredinia aren't solely hypophyllous. Urediniospores are extremely variable in shape and size. I'll be trying to rear the Mycodiplosis larvae from the later photos.

Measurements
Urediniospores
(25–)27–43(–51)×22–32 μm; Q=1.01–2.03
Urediniospores in type description
34–44×21–31 μm

Images
Slides in LPCB
1,2: Erumpent uredinia
3,4: Urediniospores
5-7: Urediniospores and paraphyses at various levels of development
8: Urediniospores in uredinium, some with broken stalks attached
9-15: Habit with bonus Mycodiplosis larvae
16-18: Intact uredinia

Photos / Sounds

Observer

johnplischke

Date

November 25, 2009

Photos / Sounds

What

Green Beetle Hanger (Complex Hesperomyces virescens)

Observer

aliandbrice

Date

January 28, 2022 12:57 PM EST

Photos / Sounds

Observer

franpfer

Date

January 28, 2022 02:34 PM CST

Description

black fungus spots on Opuntia pad?

Fungi

Photos / Sounds

What

Hongos (Kingdom Fungi)

Observer

brettjackson

Date

January 25, 2022 03:24 PM CST

Description

Not sure what to think of this; growing on Ilex vomitoria. I thought the spots might be aphid secretions until I checked the microscopy. The raised spots on the leaf don't seem to penetrate the leaf tissues deeply, and
they grow on both surfaces. They are composed mostly of tiny club-shaped conidia/microconidia(?). The conidia are around 7 × 1 μm.

Images
Slides in LPCB (last in KOH), scale bars 10 μm.
1: Habit
2: Partially dyed conidial mass near stomata
3: Spaced conidia
4-8: Habit
9: Maybe unrelated structure

Photos / Sounds

What

Sea Grape Gall Midge (Ctenodactylomyia watsoni)

Observer

finatic

Date

December 10, 2018 04:03 PM PST

Description

Lee County, Florida, US

Photos / Sounds

What

Moss Bell (Galerina hypnorum)

Observer

joe_alec_king

Date

January 28, 2022 02:58 PM UTC
Fungi

Photos / Sounds

What

Hongos (Kingdom Fungi)

Observer

aliandbrice

Date

January 20, 2022 11:30 AM EST

Description

?

Photos / Sounds

What

Goldenrod Rust (Coleosporium solidaginis)

Observer

aliandbrice

Date

January 18, 2022 03:57 PM EST

Photos / Sounds

Observer

janetwright

Date

January 20, 2022 03:43 PM CST

Description

Cyrilla swamp, growing on bark

Photos / Sounds

What

Higher Ascomycetes (Subphylum Pezizomycotina)

Observer

joemdo

Date

January 17, 2022 11:53 AM EST

Description

Growing on leaf, can't remember which species of plant :-/

Photos / Sounds

Observer

cefreebury

Date

February 22, 2015 02:34 PM EST

Description

P. ochraeoflava on the left. On Rhizophora mangle.

Photos / Sounds

Observer

cefreebury

Date

February 24, 2015 03:02 PM EST

Photos / Sounds

Observer

jennyrogerthat

Date

October 17, 2021 12:01 PM EDT

Photos / Sounds

Observer

brettjackson

Date

January 7, 2022 02:31 PM CST

Description

Hypophyllous on Ulmus crassifolia. Could also be P. guttata, though older literature suggests that this would be the species of Phyllactinia on Ulmus.
From what I can tell, the specific name is derived from the shape of the conidia, none of which I could find. Will keep an eye out for more descriptive literature (preferably not in German this time). Large enough that I could remove each chasmothecium individually with a razor.

Measurements
Ascospores
Difficult to find with only two mature chasmothecia, about:
25 × 18 μm
Chasmothecia
214– 248 μm

Images
Slides in LPCB, scale bars 100 μm for images 2 and 7, 10 μm otherwise.
1: Habit
2: Chasmothecium and appendages
3,4: Penicillate cells
5,6: Ascospores, presumably
7: Additional chasmothecium

Photos / Sounds

Observer

brettjackson

Date

January 7, 2022 02:30 PM CST

Description

Likely the same species as this observation.
A few differences:
1) This Erysiphe sp. is growing on the upper side of the leaf
2) This host is Ulmus crassifolia rather than U. americana

The two specimens don't differ greatly in microscopy, though I did find conidia in this observation, which I did not in the previous.

Measurements
Ascospores
23–30 × 12–14.5 μm
Chasmothecia
110–132 μm
Conidia
35.5–44.5 × (13.6–)16–17 μm

Images
Slides in LPCB; scale bars all 10 μm, but 100 μm in image 3.
1,2: Ephiphyllous habit
3: Chasmothecia
4: Chasmothecia appendages
5: Chasmothecium
6: Immature chasmothecium
7,8: Ascospores
9-11: Conidia

Photos / Sounds

Observer

brettjackson

Date

December 2021

Place

Texas, US (Google, OSM)

Description

Epiphyllous on Quercus virginiana. Keys most closely to C. dentatus, but lacks the black boundary that I would expect.

Measurements
Asci
(68–)91–113 × 7.7–9.4 μm
Ascospores
50–65(–77) × 1–1.6 μm

Images
Slides in KOH, scale bars 10 μm.
1-4: Habit
5-7: Asci
8: Immature ascus
9: Paraphyses
10: Ascospores
11: Crystalized minerals in apothecium

Photos / Sounds

Observer

stephenforguson

Date

January 5, 2022 05:03 PM EST

Photos / Sounds

Observer

cefreebury

Date

February 22, 2015 02:34 PM EST

Description

On Rhizophora mangle.

Photos / Sounds

Observer

brettjackson

Date

December 26, 2021 01:17 PM CST

Description

Keys well to X. longiana or X. multiplex, but the growth habit is nowhere near cespitose.

Measurements
Ascospores
9.4–11.8(–12.6) × 4.5–5.9 μm
Conidia(?)
9.5–10.8 × 3.3–3.6 μm

Images
Slides in KOH, scale bars 10 μm.
1-3: Habit
4: Ascospores
5,6: Likely conidia

Photos / Sounds

Observer

brettjackson

Date

December 26, 2021 11:58 AM CST

Description

On Ligustrum leaves. All slides in water, with a few using Lactophenol Cotton Blue while searching for any fungal symbionts. Scale bars 10 μm, 100 μm in image 14.

Measurements
Zoospores (or gametes?)
6.65 × 6.33 μm
Zoosporangia
250 × 180 μm

Images
1: Epiphyllous habit
2-4: Zoospores
5: Sporangiophore (while using LPCB)
6: Zoosporangia
7,8: Sporangiophores
9,10: Thallus
11,12: Gametangium?
13: Red pigment in setae
14: Low magnification, full view
15,16: Habit

Photos / Sounds

Observer

brettjackson

Date

November 9, 2021 03:03 PM CST

Description

Beautiful, dichotomously branched chasmothecial appendages. Took 20+ hours to stitch together the focus stacks manually.
Mycelium and fruiting bodies are strictly hypophyllous on Quercus pagoda leaves, as shown in habitus pictures 5 and 6.
Literature

The most often described Erysiphe sp. from oak leaves is E. alphitoides; however, the chasmothecial appendage lengths range from 0.75 to 2 times the diameter of the chasmothecium. The appendages in this observation consistently only measure 0.5 to 0.75 times the chasmothecial diameter.
E. quercicola is similar to E. alphitoides, but with shorter appendages that match the range of this observation. E. quercicola would be a good candidate apart from the ascospore dimensions, which are smaller than this observation's ascospore dimensions by ~30%. Additionally, both E. alphitoides and quercicola are only dubiously present in North America, and may be limited to Europe and/or South America.
Identification
Erysiphe abbreviata is a North American species that has been collected from Quercus pagoda. It has notably larger ascospores than the other Erysiphe spp. mentioned, and shares the short appendages of E. quercicola; Braun et al. 2007.
Image annotations
1) Chasmothecium with appendages – lactophenol cotton blue (LPCB)
2) Chasmothecial appendage, dichotomously branched ~5x – LPCB
3) Erumpent ascus with ascospores – Melzer's reagent (MLZ)
4) Ascospores – MLZ
5) Habitus with chasmothecia visible on underside of Q. pagoda leaf
6) Close view of habitus
7) Conidium with initial appressorium growth – LPCB
8) Lobed appressorium – LPCB
9) Chasmothecium detail with early, unbranched appendages – LPCB
10) Uncropped view of all appendages – LPCB
11) Chasmothecia among stellate trichomes – MLZ
12) Ruptured chasmothecia detail – Water

All scale bars are 10 μm.
Average measurements vs. literature range
Ascospores:
24.14 × 14.13 μm || 20–32 × 12–21 μm
Asci:
55.62 × 38.29 μm || 50–70 × 35–55 μm
Chasmothecial diameter:
82–124; x̄:108 μm || 70–125(–130) μm
Conidia:
32.21 × 14.41 μm || 25–45 × 10–20 μm
Hyphal width:
4.42 μm || 2–6 μm

Literature measurements from:
Braun, Uwe & Shi, Ainong & Mmbaga, M. & Takamatsu, Susumu & Divarangkoon, Rangsi & Chen, P.. (2007). Erysiphe abbreviata on cherry bark oak - Morphology, phylogeny and taxonomy. Mycologia. 99. 655-63. 10.3852/mycologia.99.5.655.

Photos / Sounds

What

Brittlegills (Genus Russula)

Observer

amymferg

Date

December 22, 2021 11:40 AM HST

Photos / Sounds

Observer

brettjackson

Date

December 6, 2021 01:49 PM CST

Description

Hypophyllous on Solidago. Urediniospores seem significantly too small to call this Coleosporium solidaginis, measuring 15–29 × 13–19 μm, whereas they are cited in literature as closer to 23–36 × 15–24 μm. Possibly C. delicatulum, but I can find no descriptions of the uredinial stage. Scale bar 10 μm.

Photos / Sounds

What

Violet-toothed Polypore (Trichaptum biforme)

Observer

afranck

Date

December 2021

Photos / Sounds

Observer

brettjackson

Date

December 19, 2021 10:56 PM CST

Description

I've found similar specimens twice before, but have never collected one for microscopy. Both teleomorphic and anamorphic forms present, growing on fallen oak. Asci are consistently 8-spored and cylindrical. Ascospore measurements are consistent with descriptions of Stilbocrea macrostoma.

Measurements
Ascospores: (8.6–)10.2–12.1(–13.5) × 5–6.2 μm
Asci: 72–97 × 5.2–7 μm

Images
All slides in Melzer's, scale bars 100 μm for images 2,6,7; 10 μm for all others
1: Habit - teleomorph (pycnidia) and anamorph (Stilbella-like pins) stalks
2: Conidioma
3-5: Asci and ascospores
6-9: Condiomata and microconidia(?)
10-18: Habit

Photos / Sounds

What

Cypress Twig Gall Midge (Taxodiomyia cupressiananassa)

Observer

mirandabird

Date

December 20, 2021 03:42 PM EST

Photos / Sounds

Observer

brettjackson

Date

December 2021

Place

Texas, US (Google, OSM)

Description

On Potentilla indica leaves. Possibly Septoria duchesneae due to the host, but descriptive literature is almost impossible to find. Conidia bursting from pycnidia, filiform, hyaline.
Measurements
Conidia: (26–)32–40 × 1.3–1.7 μm
Images
All slides in KOH, scale bars 10 μm
1: Pycinidium with conidia
2: Pycnidia top view
3: Conidia
4,5: Habit

Photos / Sounds

What

Blue Cheese Polypore (Cyanosporus caesius)

Observer

ken-potter

Date

November 2021

Description

Farm aside Walkabout Way trail head

Photos / Sounds

Observer

brettjackson

Date

December 6, 2021 01:28 PM CST

Description

Not too familiar with Hirsutella/Ophiocordyceps anamorphs, but seems to fit. Likely the same species group that is currently epizootic in Oncometopia and Homalodisca; on O. orbona.

Images
Scale bars 10 μm, slides in LPCB
1-6: Mycelium on host and Solidago stem
7: Spent phialides
8: Early conidia
9: Developed conidium and phialide
10: Developing conidia and phialides
11: Spent phialides and hyphae
12: Habit

Photos / Sounds

What

Juniper-apple Rust (Gymnosporangium juniperi-virginianae)

Observer

pufferchung

Date

December 2021

Place

Texas, US (Google, OSM)

Photos / Sounds

Observer

brettjackson

Date

December 2021

Place

Texas, US (Google, OSM)

Description

Keys out to Rhytidhysteron guaraniticum on two separate keys, can't find much information on the species apart from that however. At the very least exists in Paraguay.
On Citrus bark.
Mature ascocarps often exceed 2 mm in length. Width is variable with opening/closing, but closes to 0.4-1 mm.
Ascospores
23.3–33.5 × (8.4–)10.7–13.8 μm; Q: 1.94–2.92(–3.67)
Mostly 3-septate, often 1-septate, very rarely 2-septate.

Image Notes
All microscopy with 10 μm scale bars, mounted in KOH or LPCB
2: Open ascocarps revealing epithecia after sitting in water droplets for 30 minutes
4: Ascospores
5: Asci with ascospores in cross section
6: Exciple
7: Paraphysis
8: Cross section at low magnification

Photos / Sounds

What

Bluestem Ergot (Claviceps pusilla)

Observer

calebhelsel

Date

December 11, 2021 10:26 AM CST

Photos / Sounds

Observer

susanhewitt

Date

December 7, 2021 03:23 PM EST

Photos / Sounds

Observer

brettjackson

Date

December 6, 2021 10:23 PM CST

Description

From a description of Zelleromyces in the southeastern United States in Mycotaxon 72, Steven Miller and Teresa Lebel describe Z. cinnabarinus as the most often found species in the genus. However, Z. cinnabarinus spores are about 13–17.5 × 11.5–15.5 μm, whereas this specimen's spores are 8–9.5 × 6.7–8.5 μm; almost a 2x discrepancy. This is mostly similar to another species described by Miller and Lebel, Z. versicaulis, with spores described as 8–9 × 6.5–8 μm. While Z. cinnabarinus grows exclusively under Pinus, Z. versicaulis may grow under Quercus, especially Q. virginiana. This specimen was growing a few feet away from the base of Q. virginiana.
Spores are hyaline in KOH, with ridges/ornamentation amyloid in Melzer's.

Images
All scale bars 10 μm.
1: Cross section showing latex
2: Spores – Melzer's
3-8: Habit
9: Basidium – MLZ
10: Peridium – MLZ
11-17: Basidia/hymenial elements – KOH
18-20: Hyphae – KOH

Photos / Sounds

What

Bluestem Ergot (Claviceps pusilla)

Observer

calebhelsel

Date

December 5, 2021 01:15 PM CST

Description

On Bothriochloa laguroides

Photos / Sounds

What

Sandy Laccaria (Laccaria trullisata)

Observer

mahall

Date

December 1, 2021 11:06 AM UTC

Photos / Sounds

What

Willow Rust (Melampsora epitea)

Observer

brettjackson

Date

November 30, 2021 11:54 AM CST

Description

Amphigenous on Salix nigra leaves. Has previously been reported from S. nigra in North America.

Measurements (µm)
Ascospores as observed:
16–22.5 × 13–15.5 /1.6–2.9 wall thickness.
Ascospores in literature:
12–25 × 10–18/1·5–3.
Paraphyses width as observed:
17–19
Paraphyses width in literature:
15–24

Images
All structures in KOH, scale bars 10 µm.
1: S. nigra leaf with infection
2: Paraphyses
3: Urediniospores
4: Paraphysis
5: Teliospores
6-7: S. nigra

Photos / Sounds

Observer

kthodges

Date

November 24, 2021 12:00 AM EST

Photos / Sounds

Observer

brettjackson

Date

November 2021

Place

Texas, US (Google, OSM)

Description

Hypophyllous, likely on Quercus virginiana leaf. Long, straight chasmothecial appendages with bulbous bases – characteristic of Phyllacytinia.
Species ID is difficult without Taxonomic Manual of the Erysiphales, which is a bit pricey. Phyllactinia alnicola has been reported on Q. virginiana in Texas as Microsphaera alni, though longer chasmothecial appendages might be expected for that species.
Ascospores
Range: 34.5–39.5 μm × (16.8–)17.5–21.5 μm; 1.62–2.23 μm/μm
Average: 36.61 μm × 19.77 μm; 1.86 μm/μm
Asci
Average: ~55 μm × 45 μm
Conidia
Range: (46–)48–51(–52.7) μm × (15.7–)18–24 μm; 2–2.6(–3.3) μm/μm
Average: 49.44 μm × 20.61 μm; 2.45 μm/μm
Chasmothecia
Diameter Range: 174–224 μm
Average: 203 μm
Appendage Length Range: 263–321 μm
Average: 299 μm
App. Length/Diameter Range: 1.32–1.65 μm/μm
Average: 1.48 μm/μm

Images
Scale bars 10 μm unless otherwise specified. All mounted in either LPCB or Melzer's.
1: Chasmothecia and appendages; top left and bottom right scale bars 100 μm
2-4: Habitus with appendages visible

  1. Ascospores and ascus
  2. Conidioma and conidia
  3. Penicillate structures
  4. Overzealous squash
  5. Hypha and appressorium(?)
  6. Sterigma-like strucutre from penicillate hyphae
  7. Appressorium (?)
  8. Underside of leaf.
  9. More habitus.

Photos / Sounds

Observer

nat_t

Date

November 21, 2021 11:00 AM EST

Description

On live oak

Photos / Sounds

What

Script Lichens and Allies (Family Graphidaceae)

Observer

jciv

Date

November 5, 2021 08:47 PM CDT

Description

first shot under UV light. on oak.

Photos / Sounds

What

Pale Bramble Rust (Kuehneola uredinis)

Observer

brettjackson

Date

November 24, 2021 03:31 PM CST

Description

Urediniospores 22–28.5 × 15–18.5 μm, highly verrucose with hyaline walls ~1.5 μm thick. On Rubus sp.
Images:
1: Habitus
2: Stalked urediniospores (referred to as spores from now on)
3: Verrucose surface of spores visible in air bubble
4: Germ pores?
5: Hyphae and spores
6: Spores and paraphyses?
7: Broken stalks on spores
8: Single spore
9: Hyphae, spores
10: Full structure, scale bar at 100 μm
11: Bonus Mycodiplosis larva
12-14: Habitus

All microscopy in Melzer's, scale bars 10 μm apart from picture 10.

Photos / Sounds

What

Boletes (Family Boletaceae)

Observer

angelkelley

Date

November 25, 2021 09:30 AM EST

Photos / Sounds

What

Laccarias (Genus Laccaria)

Observer

jeenan

Date

November 14, 2021 11:54 AM EST