124 NORTH AMERICAN FLORA [VoLuME 9 
Fomes neglectus Pat. Jour. de Bot. 1: 169. 1887. Type collected on ‘trunks in Nica- 
ragua on the North Pacific exploring expedition. Pileus sessile, 8-10 cm. broad, reddish- 
black, shining: context brown; tubes white, very short: spores globose, yellow, roughly 
echinulate, 11-12. The type at Paris is much contorted and very poor, so that it is im- 
possible to locate the species definitely without additional material. 
74, CERRENA (Micheli) S. F. Gray, Nat. Arr. Brit. Pl. 1: 649. 1821. 
Phyllodontia Karst. Hedwigia 22: 163. 1883. 
Hymenophore small, epixylous, sessile, conchate, annual; surface anoderm, hairy or 
subglabrous, zonate or sulcate: context thin, white, fibrous, flexible; hymenium at first 
labyrinthiform, soon becoming irpiciform from the splitting of the dissepiments: spores 
smooth, hyaline. . 
Type species, Sistofrema cinereum Pers. 
Surface of pileus conspicuously villose-strigose. 1. C._unicolor. 
Surface of pileus minutely fibrillose to glabrous. 2. C. stereoides. 
1. Cerrena unicolor (Bull.) Murrill, Jour. Myc. 9: 91. 1903.. 
Boletus unicolor Bull. Herb. Fr. pl. #08. 1788. 
Boletus decipiens Schrad. Spic. Fl. Germ. 169. 1794. 
Ststotrema cinereum Pers. Syn. Fung. 551. 1801. 
* Daedalea unicolor Fries, Syst. Myc. 1: 336. 1821. 
Phyllodontia Magnusti Karst. Hedwigia 22: 163._ 1883. (Type from Berlin.) 
? Daedalea tortuosa Cragin, Bull. Washburn Lab. Nat. Hist. 1: 26. 1884. (Type from Kansas.) 
Pileus coriaceous, sessile, imbricate, dimidiate to flabelliform, conchate, often laterally 
confluent, 2.5-3.5 X 5-10  0.1-0.3 cm.; surface villose-strigose, rugose, zonate, plicate, 
isabelline to fulvous, becoming avellaneous with age and blackish and nearly glabrous 
behind; margin acute, undulate to lobed, paler, zonate, strigose-tomentose: context very 
thin, membranaceous, white, homogeneous, scarcely 1 mm. thick; tubes decurrent, laby- 
rinthiform, 1-3 mm. long, white or isabelline to fuliginous or umbrinous, averaging 2 toa 
mm., edges acute, uneven, soon becoming dentate-lacerate, giving the hymenium an irpici- 
form appearance: spores ovoid, smooth, hyaline, 4-6 XK 3-4; hyphae 3-5“; cystidia none. 
TYPE LOCALITY: France. 
Haspitat: Dead deciduous wood of various kinds. 
DISTRIBUTION : North temperate zone. 
ILLUSTRATIONS: Bull. Herb. Fr, f/. 408, 501; Bolt. Hist. Fung. App. Al. 167; Sow. Engl. 
Fungi pl. 325. 
Exsiccati: Arcang. Erb. Crit. Ital. II. 723, Westend. & Wall. Herb. Crypt. 2285; Sydow, 
Myc. Mar. 1204, 3425; Roum. Fungi Gall. 2906; Desmaz. Pl. Crypt. 466; Thiim. Fungi Austr. 727, 
818, 1009; Krieger, Fungi Sax. 223; Linhart, Fungi Hung. 249, Roum. Fungi Sel. 6728, 6820 ; 
Romell, Fungi Scand. 6; Ellis, N. Am. Fungi 924; Ellis & Ev. Fungi Columb. 210; Shear, N. Y. 
Fungi c 2 am Fungi Rossiae 77; Beck, Krypt. Exs. 3/3; Rab.-Wint. Fungi Eur. 3738; Rav. 
ungi Car. 4, : 
2. Cerrena stereoides (Fries) Murrill. 
Daedalea stereoides Fries, Nov. Symb. 99. 1851. ; 
Pileus coriaceous, flexible, dimidiate or flabelliform, umbonate-affixed, applanate, 
2X 2-3 X0.1-0.2 cm.; surface pale-isabelline, concentrically lineate or slightly grooved, 
fibrillose to glabrous; margin very acute, straight, pallid, undulate or slightly lobed: 
context thin, white to pallid, membranous; tubes 1-1.5 mm. long, white to pallid within, 
soon becoming irpiciform, mouths 1-2 to a mm., irregular, at first daedaleoid, soon split- 
ting into sharp, slender, forked teeth, which are at first white or yellowish, becoming 
avellaneous-isabelline and glistening: spores not examined; hyphae 2-4 y. 
TYPE LOCALITY: San José, Costa Rica. 
HapitraT: Dead trunks. 
DISTRIBUTION: Costa Rica; also in Brazil. 
75. DAEDALEA Pers. Syn. Fung. 499. 1801. 
Daedaleopsis Schrét. Krypt. Fl, Schles. 3: 492, 1888, 
Hymenophore epixylous, usually large and annual, sessile, applanate to ungulate; 
surface anoderm, glabrous, often zonate: context white or wood-colored, rigid, woody or 
