1920] 
BURT—THELEPHORACEAE OF NORTH AMERICA. XII 87 
26. Spongy-soft, mo poa cystidia 36-60X9-12u; spores F^ eed 
ow UE to Meuoo.........o v E REB 6. S. spumeum 
26. Bus out is the bark, forming a gray hymenium ai becoming 
xed, 1-23 mm. in igmeter..... A 67. me ES 
26. Corky, rigid, seiner er i bing; hymenium es ei 
coming zonate; cystidia 30-50 -12u; spores 3-5u 
hemlock M other pa g Canada to Texas and as ps 
De FADO DOM. ......« «<<... ee 0008s 68. S. sulcatum 
26. Tobal a sulcate above, with a meer crust under the 
» itish; ov 36X7u; on oak, 
rth Carolina and Ohio to Mexico. ........... 69. S. oe 
27. With aca tof S. subpileatum as given Ness Mob hymenium contains num 
ous and conspicuous bottle-brush paraphyses in addition to UA: 
Pennsylvania to Colombia. ............. ers Raro Eo S. sepium 
27. T brown, velvety hymenium and a white margin; e tae filiform 
ored; spores hyaline, 6-11X3-44u. . ................. . S. albobadium 
27. With. aspect of dark specimens of S. ibd badium, siy with A zonate 
ymenium and iabodded spores colored; Oreg o MEND. + + <<. 
RI O A TAO bc 5. pba abes 
27. Becoming narrowly reflexed, fuscous, 2-10 mm. in diameter; hymen: 
in bister; paraphyses colored, with buchy-bran Geel tips. ua 1 
Alabama and Árkansas......... eene Jd. i. onb 
28. per rv n mA sulcate above, tomentose; hymenium pruinose 
zoned, containing bottle-brush paraphyses; on E Florida and 
Ill ec 5 isos a . insigne 
28. Fuscous, sulcate, not Yo AS but with upper surface a horn-like 
crust, 2-8 mm. thick; Mexico. ....... LEE 75. S. durum 
28. Woody, resupinate, crowded "A if confluent and then broken id 
frustules, 2-4 mm. in diameter, above black and wales k 
nium pinkish buff to whitish and pruinose; onoa 6. S. fituan 
28. Usually resupinate, coriaceous -soft; hymenium light y Ep cs rple 
hes oung, oni ing avellaneous, containing filiform | paraphyses 
with iiie: rigs prongs; aspect of Corticium evolvens; Canada to 
OPE R6 pnr MM «Perra REA NEM 7" 7 . Toseo-carneum 
I. Stereum caperatum (Berk. & Mont.) Massee, Linn. Soc. 
Bot. Jour. 27: 161. 1890; Lloyd, Myc. Writ. 4. Stip. Stere- 
ums, 17. text f. 581. 1913. Plate 2, fig. 1. 
Thelephora caperata Berkeley € Montagne, Ann. Sci. Nat. 
Bot. III. 11: 241. 1849; h o Syll. Crypt. 175. 1856; 
Saec. Syil. Fung. 6:523. 1888. 
Illustrations: Lloyd, loc. cit.; Engl. & Prantl, Nat. Pflanzen- 
fam. (1: 1*5: 124. f. H-J 
Type:in Kew Herb. 
Pileus coracelous, infundibuliform, drying pinkish buff, the 
upper side with elevated radial ridges and usually densely tomen- 
tose with coarse fibers; in structure 600-700 y thick, composed of 
densely, longitudinally arranged, thick-walled, hyaline hyphae 
3 pin diameter; stem central or sometimes absent, with attach- 
ment by a tomentose disk; hymenium pale pinkish buff, some- 
what radially rugose, glabrous; hair-like cystidia not incrusted, 
1 uin diameter. flexuous, often constricted near the outer end, 
