1894.] NATURAL SCIENCES OF PHILADELPHIA. 347 



or only very slightly constricted, obtuse at the ends, subinequilateral, 

 18-21x7-8", the cells uniformly brown, and each with a large 

 nucleus. 



Conies near H. vuhjare De Not. and H. ellipticum Fr., but both of 

 these have oblong sporidia, and the former has shining perithecia, 

 besides their different habitat. 



Hypoderma tunicatum E. & E. 



On dead branches of Ardostaphylos Nevadensu Gray, Mt. Paddo, 

 Wash., July, 1886 (W. N. Suksdorf, No. 268). 



Perithecia oblong or lanceolate, prominent, 1-3 x f-l mm., brown- 

 ish-black, ends subacute, entirely closed at first, finally opening by 

 an irregularly torn, longitudinal fissure along the top, exposing the 

 pale disk. Asci clavate, 150-200x18-20//, 8-spored, with filiform, 

 branching paraphyses. Sporidia biseriate, hyaline, oblong- elliptical, 

 slightly curved, 3-septate, and including the broad, hyaline envelope, 

 22x8-10;/, the septate body of the spore being about 20x3 2-4;'. 



On the tips of the branches was found Melanomma alpestre E. & E. 



Hypoderma Cassandrae E. & E. 



On dead stems and branches of Cassandra calyculata, Ann Arbor, 

 Mich., April, 1893 (L. N. Johnson). 



Perithecia scattered or gregarious, erumpent, elliptical or oblong, 

 1— Ijxi-f mm., membranaceo-coriaceous, black, bordered by the 

 ruptured and upturned epidermis, lips thin, incurved and closed 

 when dry so as to hide the grayish-black disk, finally deciduous. 

 Asci clavate, narrowed gradually below into a stipe-like base, 

 45-60 x 10-12;/ above, rounded at the apex, paraphysate. Sporidia 

 biseriate, oblong or oblong-elliptical, hyaline, mostly a little curved, 

 obtuse, continuous, 10-16x4—6;/. 



Not to be confounded with Lophoderynhim ( Cenanghmi) Cassandrae, 

 (Pk. ), which has much longer, linear or filiform sporidia. 



* * * 



DISCOMYCETES. 



Barlaea lacunosa E. & E. 



On bark, Notre Dame Bay, Newfoundland, May, 1894 (Rev. A. 

 C. Waghorne). 



Sessile 2-I2 cm. broad, orange-color, hymenium deeply lacunose, 

 yellowish-white outside and minutely tomentose, margin undulate 

 and narrowly incurved. Asci cylindrical, p. sp. 70-90;/, 8-spored. 



