1924) 
BURT—THE THELEPHORACEAE OF NORTH AMERICA. ХІІ 29 
1891.—A. albido-carneum Massee, Linn. Soc. Bot. Jour. 25: 
155. pl. 46. f. 8,9. 1889. Not Thelephora albido-carnea Schweinitz, 
Am. Phil. Soc. Trans. N. S. 4: 169. 1832.—4. pallidum Morgan, 
Cincinnati бос. Nat. Hist. Jour. 18: 38. pl. 1, f. 6. 1895; Sacc. 
Syll. Fung. 14: 223. 1899. 
Type: in Kew Herb. and Curtis Herb. 
Fructification effused, thin, spongy, dry, avellaneous to cin- 
namon-drab within, the margin fibrillose-floccose, paler; hymen- 
ium even, pulverulent, becoming pallid where well-fruited; 
structure in section 150-300 џ thick, composed of thin-walled, 
loosely arranged, hyaline hyphae 2-214 y in diameter and of 
conspicuous, colored, thick-walled, rigid, stellate organs with 3-7, 
usually about 5, unbranched rays 15-60 и long and 3-3) y in 
diameter, distributed throughout the fructification; cystidia 
(gloeocystidia?) fusoid, often sharp-pointed, not incrusted, 30-45 
X 8-12 y, protruding up to 25 y above the basidia; basidia simple, 
with 4 sterigmata; spores white in spore collections, spherical, 
becoming echinulate, with the spore body 4-5 y in diameter. 
On decaying wood, earth, and on outside of a flower pot. 
Canada to Louisiana, in Washington, California, Mexico, West 
Indies, and Japan. July to March. Widely distributed but not 
abundant. 
The color of this species varies somewhat with the presence 
and degree of development of the hymenium; young fructifica- 
tions still lacking basidia or with only few scattered basidia have 
а tawny color due to the numerous colored stellate bodies which 
are present in the surface of the fructification. As the hymenium 
becomes continuous in patches or over the whole surface it con- 
ceals the stellate organs and shows as а whitish or pallid pellicle 
in the regions where developed, with comparatively few colored 
rays protruding through it. Тһе type specimen of А. pallidum 
has the hymenium fully developed. Under my method of stain- 
ing sections with eosin and then preserving in glycerine mounts, 
the fusoid organs in the hymenium are what I understand as non- 
incrusted cystidia containing little granular matter, a great deal 
of cell sap, and with such thin walls that they collapse in the 
glycerine preparations. Bourdot has a special reagent and method 
which he employs as а test for gloeocystidia, and he has decided 
that these organs are gloeocystidia. 
