[Vor. 1 
198 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
1. Ваза cruciate as in T'remellodendron; fructification effuso-reflexed or cup- 
shaped with the margin ігев................................... Hirneolina 
1. Basidia cruciate as in T'remellodendron; fructification always resupinate . Sebacina 
1. Basidia simple but with such large sterigmata as to resemble longitudinally 
divided Бавіізі............................................... Tulasnella 
1. Basidia at first globose and simple, at length elongated and transversely sep- 
tate, straight or curved, bearing sterigmata on the convex side; fructification 
гевірішшаде................................................ Septobasidium 
1. Ваза simple, usually 4-врогей....................................... 2 
2. Spores colored; fructification рИеа4е........................... Thelephora 
2. Брогев colored, rough-walled to echinulate; fruetification resupinate..... 
Hypochnus 
2. Spores ochraceous, ferruginous or fuscous, even; fructification resupinate. . 
Coniophora 
2. Spores white or rarely bright colored, even or rarely uneven.......... 3 
3. Sete (brown, cylindric, rigid, even-walled bodies) present in the hymenium; 
fructifications range from pileate to resupinate................., Hymenochete 
3. Cylindrie teeth composed of many consolidated hyphe protrude from the 
hymenium but are not covered by it. Our southern species was originally 
described as a Нуйтит........................2......222222.2... M ycobonia 
3. Neither sets nor teeth present in the hymenium........................ 4 
4. Fructification coriaceous, erect, clavariform; stem often hairy . . Lachnocladium 
4. Fructification cup-shaped, resupinate with free margin or simply resupi- 
nate; hymenium pulverulent; with some two or three of the following 
characters: (1) large white spores ranging from 14-34 x 12-20 и; (2)much 
granular matter in the fructification; (3) prominent moniliform or 
branched paraphyses; (4) racemose organs in the hymenium which pro- 
duce a erop of conidia before basidiospores develop.......... Aleurodiscus 
4. Fructification pileate ranging from infundibuliform and flabelliform to 
very narrowly reflexed forms; hymenium even. Some reflexed species 
may occur тезіріпаде....................................... Stereum 
4. Fructification like that of an urn-shaped Stereum but hard and stuffed. 
One tropical species ...................................... Н ypolyssus 
4. Fructification like that of Stereum but with ihe hymenium hardened and 
with radiating branched ribs. Species tropical.............. Cladoderris 
4. Fructification always resupinate; structure not as in Aleurodiscus...... 5 
5. Subhymenial tissue contains conspicuous brown stellate organs composed of 
several radiating агпв..........................222222222.... Asterostroma 
5. Such brown stellate organs not ртевепі.............222222222222222222.. 6 
6. Cystidia present in hymenium, or in subhymenial tissue, or in both; 
structure may be compact or hypochnoid..................... Peniophora 
6. Cystidia not present; structure compact or hypochnoid........... Corticium 
! With regard to the nature of these bodies see H. O. Juel, Bihang till K. Sv. Vet.-Akad. Handl. 
23": Afd. III. 3-27. 1897. 
