The North American species of Pholiota, by Alexander H. Smith and L. R. Hesler.

Smith * Hesler

365

199. Pholiota jalapensis (Murr.) comb. nov.
Gymnopilus jalapensis Murrill, Mycologia 5: 25. 1913.
Flammula jalapensis Murrill, Mycologia 5: 36. 1913.
Illustrations: Text figs. 451-453.
Pileus reaching 8 cm in diameter, expanded, at length.depressed at
the center, ochraceous toward the disc and ferruginous-isabelline to fulvous at the center, slightly greenish when bruised, cremeous at the margin, surface smooth, moist to viscid, glabrous, margin curved downward
and irregular or undulate. Context white, 5 mm thick near stipe; taste
mild.
Lamellae adnate, stramineous, crowded, about 5 mm broad, ventricose near stipe, arcuate near the margin.
Stipe reaching 8 cm long and 10 mm thick, stramineous, equal below,
slightly enlarged at the apex, glabrous. Veil showing a trace of a slight
cortina at the middle.
Spores 5.5-6.5 (7) X 3-3.5 p/, smooth, apical pore very minute, often
not visible; shape in face view oblong to elliptic, in profile slightly beanshaped to subelliptic, color as revived in KOH ochraceous, not much
different in Melzer's reagent; wall thin (-0.25 /u thick).
Basidia 18-23 (25) X 5-6 /, mostly 4-spored, clavate, yellowish to
hyaline in KOH, yellowish in Melzer's reagent. Pleurocystidia abundant,
50-77 x 10-16 a, fusoid-ventricose, apex subacute to obtuse, neck narrow
(4-6 /j), walls thin and smooth, content with some particles of amorphous material, ochraceous to yellowish or finally pallid, content often
"colloidal." Cheilocystidia 38-60 x 5-18 /i, similar to pleurocystidia or
merely subfusoid. Culocystidia none found on specimen studied.
Gill trama with a gelatinous subhymenium, details of central area
not too clear in revived material but hyphal cells about 5-8 u/ broad.
Pileus cutis a gelatinous pellicle (with some of the hyphae incrusted)
over a rusty brown hypodermial zone of floccose, incrusted hyphae. Context hyphae poorly revived. Clamp connections present. All hyphae
inamyloid.
HABIT, HABITAT, AND DISTRIBUTION: On soil, in woods, Mexico, December. Type studied.
OBSERVATIONS: This species has spores and lamellae paler than in
most other terrestrial species. It is near P. hypholomoides, which has
broader and darker spores.
200. Pholiota innocua sp. nov.
Illustrations. Text figs. 454; 455-457; pl. 89.
Pileus 3-7 cm latus, convexus, demum late convexus, viscidus, subfulvus vel fulvus, ad marginem laete luteus. Contextus luteus. Lamellae
laete luteae confertae, latae, demum subdecurrentes. Stipes 4-6 cm longus,
9-12 mm crassus, solidus, pallide luteus, sursum pruinosus, deorsum de