358 POLYPORACE^E Poria 



1618. P. bombycina Cooke (from the silky membranous subiculum ; 

 bomtyx, silk) a b c. 



Sub. very thin, translucent ; marg. byssoid. Po. large, angular, 

 sinuous ; marg. arachnoid-velvety, pale buff or white. 



Effused. Rotten wood ; rare. Sept. 3 in. The grain of the wood some- 

 times shows through the extremely thin substance. 



1619. P. aneirina Cooke (from the margin not being woolly as in 



1618 ; Gr. an, not, eirineos, woolly) a c. 



Sub. thin, coriaceous, somewhat flaxy ; marg. byssoid. Po. shallow, 

 large, waxy, fulvous, tawny, warm biscuit-colour or bright orange- 

 yellow ; marg. flaxy, becoming waxy, white. Myc. buff-white. 



Effused. Dead wood, branches, poplar, pine under the bark ; rare. Oct. 

 4 in. Contracting and becoming torn in drying. 



1620. P. ramentaeea Cooke (from one of its habitats, chips, ramenta) 



a b. 

 Sub. thin, tomentose, white. Po. somewhat large, hexagonal, 



honey-colour ; marg. almost obsolete, irregular, warm-ivory. 

 Somewhat orbicular. Dead branches, fir. Sept. \\ x I in. Cartilaginous 



and horny when dry. Barren patches occur on the hymenium. 



1621. P. eincta Cooke (from the encircling, erect strigose fibres; 



cingo, to encircle) a. White to ivory. 

 Sub. membranous, sometimes barren, and with lacunae; marg. 



byssoid. Po. extremely minute. 

 Old deal boards, rotten planks ; rare. 3f in. Patches of vertical striga 



become confluent and form a subiculum. 



1621a. P. fuseocarnea Cooke (from the brownish flesh-colour; 



fuscus, dark brown, caro, flesh). 

 Sub. thin; marg. definite. T. -fa to T \ in. long. Po. minute, 



fawn-colour when fresh or vinous-brown, graduated paler. 

 Rotten wood, putrid trunks. 3^ x 3, in. 



1622. P. armeniaea W. G. Sm., Polyporus armeniacus Berk, (from 



its apricot-colour ; armeniacum, apricot) a b. 



Sub. membranous to in. or more thick ; marg. thin, well 

 defined, minutely downy or byssoid. Po. shallow, to -j- in. 

 deep, rounded, somewhat irregular, minute, white, then bright 

 buff, or glancing with the light, ochreous on side view, bright 

 foxy-brown on full view. 



Broadly effused, suborbicular, confluent. Baik, pine. Nov.-April. 

 3$ X i^ in. Sometimes a rugged, free pileus is formed. Cooke refers 

 this to 1566, but the spores are different in shape and size. 



1623. P. Rennyi Cooke (after James Renny) a b. 



Sub. thin to somewhat thick, pulvinate, at first somewhat frothy, 

 then dry and pulverulent ; marg. byssoid. Po. minute, few, 

 irregular in depth, here and there elongated, white, becoming 

 lemon or pale buff. Myc. gelatinous, partly byssoid. 



Odour pungent. On the ground, rotten wood, running over Marchantia, fir. 

 Nov. 2^ x | in. Pores sometimes absent or subiculum with large barren 

 patches. 



