I’ve found L rufulus under this same tree many times; this is my first time finding L rubidus here. Pretty confident they are rubidus and not rufulus from aroma, cap color, gill color, and hollow stems on smaller specimen
Spores:
(12.4)13-14.8(15.9)x(7.4)7.5-9(9.4)um
Q=(1.4)1.6-1.86(1.9);N=30
Me=13.9x8.2um ; Qe=1.7
Ellipsoid/subamygdaliform in face view, inequilateral in side veiw, verrucose, thick walled, truncated germ pore, dark brown in KOH, Dextrinoid in Melzer's.
Print: Dark brown/ purple brown.
Basidia: Clavate 4-sterigmate.
Pleurocysidia: Chrysocystidia clavate/lageniform, scattered, gold, golden brown in pictures.
Cheilocystidia: variable, narrowly lageniform/ flexouse, abundant.
Pileipellis: a cellular hymenoderm.
Clamp connections: Found.
Ecology: Growing in small troops terrestrial from city managed grass.