[Vor. в 
306 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
18. Tawny olive, E — Me to 90 и thick; setae 60-90 9-12 и, 
all starting f rea = ext to the substratum; Ver- 
mont to ш, and. LUNGS acess э» ea 32. Н. episphaerta 
18. iho Ae differs in ela oe yee H. episphaeria by he d ng 
n -9X34 и and by пази crystalline masses 12-15 д 
ter; in poor АА And СБа. 22 9 nace weve 33. H. cervina 
din 
18. Жалына bister and Vandyke sions slightly velvety when young, 
becoming glabrous, cracked, 200-300 ш thick, dark and opaque 
setae 50-90 X 8-10 и, starting in all parts of the fructification; 
рлы. ТРАН as aS ea КҮК aad bre ETET 34. H. opaca 
u mummy-brown, somewhat cracked, 30-75 ш thick; 
setae 36-45 5-7 и; on Thuja and Tsuga; Vermont to Florida 
d in British Бедел РИНЕ xr hr» o ТІГІ 35. H. tenuis 
18. Bister to warm sepia, — collieulose, not cracked ; 150-200 д 
thick; setae abundant, 60-75 x 8-9 и, starting in all parts of the 
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fructifieation; with general aspect of resupi inate H. rubiginosa but 
thin and adnate; in Vermont, Maryland, Ohio, et — ucky 
Dara eur don eaa Pao fe а UR ALACRES Eon а ЕЕ 36. H. fuliginosa 
E Btipitate species .................................%»2»........... 1- 2 
. Dimidiate, раци sessile and reflexed species, many of which occur 
€— ate. 
а. Hyphal — ni —— into an intermediate layer proper 
and a bordering, denser, dark zone on its upper side......... - 7 
b. Hyphal pem “differen tiated into E intermediate layer and at 
least a bordering, denser, dark zone on its дайы side. 
* Setigerous layer not more than BO р Chik e eov es 8-10 
** Setigerous пе hers than $0 4 ШОК, iecore ns 11-15 
No hyphal la 
III. Resupinate species, ae of which occur reflexed. 
ара layer not differentiated into an intermediate layer proper 
a bordering, denser, dark zone on the side towards the sub- 
ааа um. 
* Not MM е AAAI ER ТООС КККК а DARREN 18- 
* Stra 
b. Hyphal pea differentiated into an intermediate layer and a 
least a bordering, denser, dark zone on the side towards the 
iratum 
gubs 
* Setigerous layer not more than 50 ш thick................. 24-25 
** Setigerous layer more than 50 д ЁһісК................... 26-28 
с. Хо hyphal layer—setigerous layer seated ME on the sub- 
stratum. is nearly always resupin 
* Setae ot ПИКНИК МИ E 29 
** Both setae and eolorless, inerusted cystidia present....... 30 
*** Setae larger than 27-45 X44-5 и and not having аи . 31-36 
IV. Dimidiate, somewhat flabellate species whose structure is not я 37 
1 Hymenochaete damaecornis Link ех Léveillé, Ann. Sci. 
Nat. Bot. ПІ. 5:151. 1846; Saec. Syll. Fung. 6: 589. 1888; 
Massee, Linn. бос. Bot. Jour. 27:96. 1890. Plate 16, fig. 1. 
tereum damicorne Link, Ges. Naturforsch. Freunde Berlin 
Mag. 3:40. 1809; Fries, Epicr. 546. 1838; R. Soc. Sci. Upsal. 
Actis III. 1 : 109. 1851; Lloyd, Letter 46 : 6. 1913.—Thelephora 
damaecornis Link ex Fries, Linnaea 5 : 524. 1830.—Hymeno- 
