64 
TWO JAPANESE EDIBLE FUNGI. 
the strands of fine hyphal tissue, but without entering the large- 
celled groups. They are found especially in the fine hyphal tissues, 
near the under surface of the pileus, and in the trama, where they 
spread very much and are often branched ; in the stem they are 
usually found in the outer region. These tubes are thicker than 
the surrounding hyphae, and are filled with brownish turbid latex. 
They often send out numerous strong branches in every direction, 
and the stronger branches again send out short and delicate branch- 
lets with slender closed extremities. The foregoing account agrees 
very well with Prof. De Bary’s statements in regard to the structure 
of L. subdulcis, Fr. The subliy menial tissue is composed of small 
isodiametric cells, which show by their arrangement that they are 
members of the interwoven hyphae. The hymenial layer itself 
consists of the terminal cells of the subhymenial hyphae, closely 
packed together and placed vertically to the surface. The larger 
number of these cells develop into basidia ; the rest remain sterile 
and form the paraphyses. When the basidium has reached its full 
size, the sterigmata make their appearance on its rounded apex; 
and when they have arrived at a certain length, their extremities 
swell into a vesicle, which gradually acquires the form, size, and 
structure of a mature spore. The basidium is filled with finely 
granulated protoplasm, but as the spore advances to maturity the 
protoplasm of the basidium passes into it, and after the isolation of 
the spore the basidium at length becomes almost empty. The 
number of sterigmata borne on a basidium is two or four. The 
mature spore is spherical or ovoid, 8-10 p in diameter. 
As regards the structure of Akahatsu, it agrees in the main with 
that of Hatsudake ; but the basidia, paraphyses, and spores of the 
former are much larger than those of the latter.” 
BRITISH THELEPHOREI. 
{Continued from p. 30.) 
STEREUM. Fries. 
Hymenium definitely inferior, coriaceous, intermediate stratum 
flbrillose, distinct from the inodermeous pileus, even, smooth, un- 
changeable ; spores continuous, hyaline or olive. 
I. Mesopus. Pileus rather funnel-shaped, stem distinct , central , 
rarely obsolete. 
Stereum Sowerbei ( Berk .). Mass. Thel. 104. Thelephora Sowerbeii, 
Berk. Outl. p. 266. Cooke Sandb. No. 890. Stev. B. F. n., 261. 
Elvella pannosa, Sow. t. 155. 
Snowy white, infundibuliform, soon discoloured, acutely sca- 
brous above (1-2 in. high), stem variable, distinct, or confluent at 
the base, hymenium smooth ; spores ellipsoid, hyaline, 5 X 4 p. 
On the ground. 
