Dearness: New Species of Fungi 
105 
23. Leptostromella conigena sp. nov. 
Pycnidia elongate, 0.5-1. 5 mm., parallel to the fiber of the bract, 
erumpent, carbonous, rather widely cleft. Conidia hyaline, ii- 
45 X 2-2.5 mostly about 12 X 2.25 ^ on basidia of nearly equal 
length. 
On the outer side of bracts of cones of Picea abies (L.) Karst; 
of the preceding season’s growth, London, Ontario, April, 1915, 
/. Dearness, 3944. 
24. Melanconium parvulum Dearness & Bartholomew, sp. nov: 
Acervuli 1-2 mm. across, lodged on the cortex and closely 
covered by the raised epidermis which opens by a circular perfora^ 
tion .3 mm. in diameter, through which usually the whitish core 
of altered cortical tissue is apparent. Conidia pyriform, brown, 
with a nucleus or pale center, 9-13 X 8-9 /x. on basidia 10-30 X 3 
On dead banchlets of Betula populifolia INIarsh, southeast shore 
of Lake Huron, Ontario, Canada, May 25, 1912, /. Dearness. 
Barth. Fungi Col. 3823 is cotypic material. 
25. Cylindrosporium Crataegi Ellis & Ev. Proc. Phil. Acad. 
Nat. Sci. 1894: 372. 1894. brevispina var. nov. 
Acervuli strictly hypophyllous, affected leaves red — pomegranate 
purple (Ridg.) — at first then turning brown. Sporules thicker in 
the proximal half, mostly straight, grumous-guttulate, obscurely 
2-3-septate, 50-90 X 3-3 5 leaving when completely discharged 
a distinct cavity in the mesophyll. As in the type the exuded 
conidia make a white flocculent layer over and around the acervuli. 
On Crataegus breznspina, British Columbia, September, 1914, 
John Macoun. 
26. Cylindrosporium Toxicodendri (Curtis in Herb.) Ellis & 
Ev. Proc. Acad. Nat. Sci. Phil. 1893 : 460. 1893. 
Septoria Toxicodendri Curtis; Peck, Ann. Rep. N. Y. State Mus. 
29: 78. 1878. (No description.) 
Gloeosporinm Toxicodendri Ellis & Martin; Ellis & Ev. Jour. 
Myc. i: 1 16. 1885. 
Septoria Toxicodendri (Curtis) Ellis & Martin, Jour. Myc. 3: 
77. 1887. (Doubtless described from herbarium material.) 
3/a wonmo ro.aVodmdn Magn. Hedwigia 45 : 90. 1906. 
