1890.] NATURAL SCIENCES OF PHILADELPHIA. 243 



superficial, depressed-globose, i mm. diam. strongly papillose- 

 roughened with a few short weak glandular hairs when young, 

 finally collapsing above, ostiolum papilliforni, not conspicuous. 

 Asci oblong, 75-85 x 20-24 ,a. nearly sessile, paraphyses evanescent. 

 Sporidia crowded-biseriate, 8 in an ascus oblong or slightly clavate- 

 oblong, a little curved, obtuse at the ends. Mostly o-septate with 

 one or two of the cells divided by a longitudinal septum, hyaline 

 becoming yellow-brown, 22-30 x 10-11 //. 



Teichospora megastega. 



On bark of old weather-beaten willow limbs and also on the wood. 

 Helena, Montana, Feb., 1889. Kelsey, No. 4 (pr. p.) and on Acer 

 glabrum, Kelsey No. 49. Perithecia gregarious, subsuperficial, the 

 base sunk in the wood or bark with about two-thirds of the upper 

 part projecting, hemispheric-globose, f-1 mm. diam. rough, ostiolum 

 inconspicuous, subpapilliform. Asci cylindrical 175-200 x 15 />.. 

 with a short stipe-like base and abundant paraphyses. Spoiidia 1- 

 seriate, about 7-septate and muriform, mostly constricted in the mid- 

 dle more or less distinctly, ends rounded or obtusely pointed, 25-36 

 X 12-15 //.. Closely allied to T. obducens, but perithecia less 

 crowded, more depressed, larger and rougher and sporidia rather 

 larger. 



Teichospora helenae. 



On decorticated weather-beaten limbs ot Salix, Helena, Mon- 

 tana, Feb., 1889. Rev. F. D. Kelsey, No. 4 (in part) also on wood 

 of Prunus Virginiana, F. W. Anderson. Perithecia gregarious, 

 semi-erurapent, i-f mm. diam. granular-roughened, collapsing above, 

 ostiolum minute. Asci clavate-cylindrical, 112-120 x 10-12 />.. 

 rather abruptly contracted below into a short stipe-like base and 

 surrounded with abundant paraphyses. Sporidia uniseriate, ovate- 

 oblong, brown, constricted in the middle, 5-7-septate and with one 

 or two of the intermediate cells divided by a longitudinal septum 

 15-25 X 8-12 //. Quite often asci are seen in which the sporidia 

 are smaller, black and shriveled as if struck with blight before 

 maturity. Closely allied to T. patellarioides, Sacc. but differs in its 

 larger globose-hemispherical perithecia without any fringe of hyphae 

 at the base and in its 5-7septate sporidia uniseriate in narrower asci. 

 Teichospora kanseusis. 



On outer bark of cottonwood trees, Kansas, Coll. Dr. G. Ege- 

 ling Com. Dr. J. W. Eckfeldt. Perithecia scattered, minute (120- 



