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EDIBLE AND POISONOUS MUSHROOMS OF CANADA
32. Hyphae of the pileus and gill trama predominantly thin-walled Pleurotus
P. ostreatus (Jacq. ex Fr.) Kummer
32. Hyphae of trama mostly thick-walled 33
33. Trama of lamellae intricately interwoven and subhymenium
inconspicuous to absent Partus
P. conchatus (Bull, ex Fr.) Fr.
33. Trama not intricately interwoven or if so then subhymenium
very distinct 34
34. Lamellae thick on edge; consistency dry and almost leathery Plicatura
(= Trogia as used here) P. alni Peck
34. Lamellae thin on edge 35
35. Fruiting body tough; edge of lamellae serrate Lentinus
L. lepideus Fr.
35. Fruiting body fleshy; edge of lamellae even Pleurotus
P. ostreatus (Jacq. ex Fr.) Kummer
36. Annulus present 37
36. Annulus lacking or veil leaving a fibrillose zone on upper
part of stipe 38
37. Cuticle of pileus composed of sphaerocysts Cystoderma
C. amianthina (Scop, ex Fr.) Fayod
37. Cuticle of pileus filamentous (see Lentinus also) Armillaria
A. luteovirens (A. & S. ex Fr.) Gill.
38. Lamellae waxy, typically flesh colored; spores echinulate
(smooth in L. trullisata) Laccaria
L. laccata (Scop, ex Fr.) B. & Br.
38. Not as above 39
39. Cuticle of pileus a turf of gelatinous, narrow, branched hyphae;
stipe velvety-pubescent and fulvous to dark brown below
from colored tomentum Flammulina
F. (Collybia) velutipes (Curt, ex Fr.) Sing.
39. Not as above 40
40. Typically lignicolous in habit; cheilocystidia present, large;
clamp connections present; cystidia on pileus when present decumbent
as somewhat differentiated end cells of hyphae;
rhizomorphs usually present at base Tricholomopsis
T. (Tricholoma) rutilans (Schaeff. ex Fr.) Sing.
40. Not as above 41
41. Fruiting body, especially the lamellae, staining gray, bluish, or black,
or if not staining then the lamellae gray and the cuticle of the
pileus filamentous; color white to black, seldom brightly colored in
any part; if lamellae white at first then basidia with
carminophilous granulation Lyophyllum
L. (Collybia) leucopheatum Karst.
41. Not as above 42
42. Stipe slender and cartilaginous to tough, or if thick, then with
a clearly distinct, cartilaginous cortex 43
42. Stipe typically fleshy in consistency, if thin then it is pliant 47
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