[Vol. 3 

 218 ANNALS OF THE MISSOURI 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, 

 nodose-septate, thick-walled, concolorous 

 with the fructification but darker near the 

 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 i/x long, colored like the dark wall ; basidia 



yp a, sporex . ^^^^^ ^ stcrigmata ; spores concolorous, 



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

 6-8/i in diameter, or 6 X 41/2-6^. 



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

 On rotten wood. New Hampshire and Massachusetts. Au- 

 gust. Rare. 



H. spiniferus is so similar to H. spongiosiis 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. 



Sjoecimens examined: 

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

 numbered specimen collected in 1904. 

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



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



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

 1881, but not Hypochnu^ tahacinus Bresadola. — Zygodesmus 

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

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



