[Vol. 3 

 218 ANNALS OF THE MISSOUBI BOTANICAL GARDEN 



Wisconsin: Lake Geneva, E. T. S S. A. Harper, 950. 

 Montana: Evaro, J. R. Weir, 436, 438 (in Mo. Bot. Gard. 



Herb., 19515 and 19597 respectively). 

 Bahama Islands: A, E, Wight (in Farlow Herb.). 



8. H. spiniferus Burt, n. sp. 

 Type : in Farlow Herb, and in Burt Herb. 

 Fructification effused, membranaceous, separable, tomen- 

 tose, varying from sepia to fuscous ; in structure about 1000/x 



thick, with the hyphae loosely interwoven, 



^. i \ nodose-septate, thick-walled, concolorous 



^ L\ with the fructification but darker near the 



"''r>M'r-Hp-rW^cL^ substratum and spinulose, the paler hy- 



'^''''''^'-'^^^ phae rough-walled or even, body of largest 



Fig. 8 hyphae 4-5/x in diameter, the spines about 



H. spiniferus \jx long, colored like the dark wall ; basidia 



Hypha, sporex640. ^.^^ ^ stcrigmata ; spores concolorous, 



globose, sometimes flattened on one side, echinulate, the body 

 6-8)u in diameter, or 6 X 4%-6/a. 



Fructifications about 5 cm. long, 3 cm. broad. 

 On rotten wood. New Hampshire and Massachusetts. Au- 

 gust. Eare. 



H. spiniferus is so similar to H. spongiosus in habit and 

 coloration that it can be separated from the latter only by 

 the distinctly spiny-walled and rough-walled hyphae of the 

 former species. This character is as marked as in the capil- 

 litium of some Myxomycetes, The New Hampshire collec- 

 tions which I have included under H. spiniferus have rough- 

 walled hyphae and no spines. 



Specimens examined: 

 New Hampshire: Chocorua, W. G. Farlow, 11, and an un- 

 numbered specimen collected in 1904. 

 Massachusetts: Magnolia, W, G. Farlow, type. 



\ViV wci^-..' -. ' .; ^^ -" U' '^-'^' ^ --'' ' 



^^9. H. granulosus (Peck) Burt, n. comb. 



Grandinia tdbacina Cooke & Ellis, Grevillea 9 :103. March, 

 1881, but not Hypochnus tabacinus Bresadola. Zygodesmus 

 granulosus Peck, Bot. Gaz. 6 :277. 1881. Hypochnus elae- 

 odes Bresadola, I. R Accad. Agiati III. 3 :115. 1897. 



