g2 PROCEEDINGS OF THE CANADIAN INSTITUTE 



Sporules oblong, 20 — 30 x 8 — 10 //, rounded at the ends, hyaline, filled with granular 

 matter. 



On dead limbs of Cornus paniculata, London, Canada, May, 1893. Herb. D., No. 

 2099. 



This differs from Phonta Corni, Fckl., and P. Corni Suecicc (Fr.), in its much larger 

 sporules. 



Dendrophoma Poarum, E. & D. 



Perithecia erumpent superficial, papillate, hemispheric to conical, 150 to 200// 

 in diam. Sporules oblong-fusoid, hyaline, with a small nucleus in each end, 10—12 

 X 2 — 2i /i, terminal and lateral on dichotomously branched basidia, 20 x li /i. 



On culms and inflorescence of Poa annua, London, Can., June, 1894. Herb. D., 



No. 2266. 



Vermicularia Sambucina, E. & D. 



Perithecia gregarious, numerous, erumpent, hemispheric-depressed, 90 — 180 //, 

 thickly beset with dark dark-brown, short bristles 40 — 100 fi, mostly about 45 //. 

 Sporules hyaline arcuate-fusoid, nucleolate, 24 x 3 — 3^ ji. 



On dead young stems of Samhucus sp., London, Can., Aug., 1895. Herb. D., No. 



2310. 



DiPLODiA Thalictri, E. & D. 



Perithecia sub-gregarious, sub-cuticular, depressed-spherical or elliptical, small, 



150 200 ji, visible through the thin epidermis which is raised into pustules and 



pierced by the papilliform, soon deciduous ostiola. Spores oblong-cylindrical, 

 obtuse, i-septate, pale brown, not constricted, 8—10 x 3^ //. 



On dead stems of Thalictrum polygamum, London, Can. Herb. D., Nos. 221 1 

 and 2296. 



ASCHOCHYTA LeONURI, E. & D. 



Spots I — li mm., numerous, thin, appearing as if the tissue were eaten out by a 

 minute leaf-miner ; rounder angular, small, becoming confluent and then causing the 

 part of the leaf to drop out. Perithecia 150 — 170 /n, visible from both sides of the 

 leaf. Sporules oblong-cylindrical, uniseptate, pale, 14— 17 x 3^ — 4 /i. 



Perithecia larger and spores different, otherwise like Phyllosticta decidua, E. & K. 



On leaves of Leonuriis cardiaca, L., London, Can., July, 1893. Herb. D., No. 2160. 



Hendersonia Discosioides, E. & D. 



Spots deep red-brown, definite, sub-orbicular or irregular in shape, 2--10 mm. in 

 diam. Perithecia epiphyllous, discoid, about J mm. diam., bordered by the ruptured 

 epidermis, black. Sporules oblong or clavate-oblong, 3-septate and slightly constricted 

 at the septa, smoky-hyaline, 14 — 16x4 — 5 f, on slender pedicels about as long as 

 the sporules. The spots finally become whitish in the centre. 



On leaves of Crataegus sp. London, Can., Aug. 1893. Herb. D., No. 2186. 



H.foliormn, Fckl., has curved, darker sporules than this species. 



Hendersonia Ostryigena, E. & D. 



Perithecia scattered, about ^tnm. in diam., buried in the bark which is blackened 

 over them and raised into pustules pierced by the minute ostiola. Sporules oblong, 

 3-septate, not constricted, brown, obtuse, 10 — 12 x 4 //, exceptionally with one cell 

 divided by a longitudinal septum. 



On dead limbs of Ostrya Virgniica, London, Can., May, 1893. Herb. D., No. 2170. 



Camarosporum Ulmi, E. & D. 

 Perithecia gregarious, subglobose, about ^ mm. in diam., soft, slate-colour inside. 



