1885.] 



NEW FUNGI. 



141 



DiATKYFE 3iEGAST()MA, J^. & E.— Oil (lead truiiks of ullnus mn-ulata, 

 Newfield, J., July, ISS"). Stroma cortical, orbicular, 2—3 mm. in 

 diameter, limited by a black line which penetrates the wood beneath to 

 the depth of about 1 mm., often confluent or subconflueut in series of 5 

 —10 cm., bursting through the bark with a longitudinal cleft. Perithecia 

 15—25 in a stroma, orbicular or ovate, with thick, black, membranaceous 

 w^alls, contracted above into a narrow neck. Ostiola large, prominent, 

 and 4-5-stenate-cleft Asci slender, clavate, 75—80 x 6—7 (spore-bear- 

 ing part 35—40 long). Parapliyses very abundant and distinct at first, 

 much exceeding the asci but finally disappearing. Sporidia cylindrical, 

 yellowish, strongly curved, generally with a nucleus in each end, subbise- 

 riate above, 5—6 x 2 This is allied to D. microspora, Ell., and D. moro- 

 ides, C. & P. From the former it may be distinguished by its smaller and 

 less prominent stroma, and its longer asci and longer, ligliter colored, 

 strongly curved sporidia, and from the latter by its stroma limited by a 

 black line, its more prominent and larger ostiola, and its strongly curved, 

 much lighter colored, shorter sporidia. It may be distinguished by these 

 last two characters also from D. phceosperma, Ell. 



D. megastoma is accompanied by a Libertella with filiform, curved 

 spores 20—25 x 1 /^—apparently its spermogonial stage. 



(t© be continueb.) 



NEW LITERATURE. 



BY W. A. KELLERMAN. 



''Plants of the Greeley Expedition." By Geo. Vasey. The Botan- 

 ical Gazette, Sept. and Oct., 1885. 

 A list of plants collected in the vicinity of Fort Conger, Grinnell 

 Jiand, and read before the Botanical Club of the A. A. A. S., consisting 

 of sixty-one flowering plants, two equiseta, one fern and one fungus. 

 The latter, hitherto undescribed, is as follows : 



Puccinia Cheiranthi, E. & E.— On Gheiranilius pygmoeus, Grinnell 

 Land. III. Sori hemispheric, brown, naked, i — f mm. in diameter, 

 thickly scattered over both sides of the leaves, but (in the specimen 

 examined) not confluent. Spores oblong or cJavate-oblong, light brown, 

 constricted at the septum, 35—53 x 15—22/^-, either consisting of two sub- 

 equal cells, or, oftener, the upper cell broader and shorter (subglobose), 

 and the lower one tapering into the stout, rather persistent pedicel, which 

 is about as long as or a little longer than the spore itself ; epispore smooth 

 or faintly but rather coarsely roughened above, thickened and lacerated at 

 the apex so as to resemble somewhat the remains of the calyx on a cur- 

 rant or huckleberry. I. and II. not seen. This appears to be sufficiently 

 distinct from the other species on the Cruciferse. 

 "The ^cidium of Adoxa." By J. C. Arthur, 1. c. 



