128 MR. GEORGE MASSEE ON THE THELEPHORES. 
mycetes. The thick, separable, compact subiculum agreeing with 
the former, whereas the degenerate basidia and coloured com- 
pound spores point to an affinity with the latter. 
HETEROBASIDIUM CHLORASCENS, Massee, n. sp. Late effusum, 
determinatum ; hymenio pallide virente ; spore elliptico-fusoidee, 
triseptate, fuscidule, 25 x5 x6 u. (Type in Herb. Kewens.) * 
(Pl. XLVI. f. 11.) 
On bark of Carpinus. Gainsville, Florida (Ravenal). 
Effused, adnate, but inclined to separate from the matrix; 
subieulum thick, compact, almost pseudo-parenchymatous in 
section; hymenium minutely puberulent, dirty white with a 
tinge of green. 
The name Corticium chlorascens was first used by Berkeley 
and Broome (Journ. Linn. Soc. vol. xiv. p. 70) in describing a 
plant from Ceylon supposed to be a Corticium, but which on 
microscopic examination proves to be an immature byssoid 
Nectria. The plant described above was considered by Berkeley 
as identical with C. chlorascens ; hence this name has found its 
way into the mycologic flora of the United States. Various 
species of Corticium sent by Ellis and others are in the Kew 
collection as C. chlorascens. 
CoNIoPHoRA, DC. ; Massee (emend.). 
Resupinato-effusa; hymenio leve pulverulento ; spore fusci- 
dule. (Pl. XLVII. f. 13.) 
The word Coniophora was first used in a generic sense by De 
Candolle (Fl. Fr. vi. p. 34), afterwards by Persoon (Myc. Eur. 
i. p. 153), and later by Fries as a subgenus of Corticium ; but in 
neither instance with exactly the same limitation as defined 
above. Nevertheless it has been considered advisable to retain the 
old name rather than coin a new one less expressive of the spore- 
powdered hymenium, which, along with the coloured spores, 
mark the genus. The basidia are tetrasporous, whereas in 
Aleurodiscus the large coloured gonidia are produced singly on 
threads, and in most instances accompanied by true spores borne 
in fours on basidia. 
* The bracketed reference indicates in every instance the value of the specimen 
—whether the type or by whom identified, as also the herbarium in which it 
exists, from which spore-measurements &c. were obtained. 
