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cell narrower and furnished witli an eccentric pedicel 10-12 jj long, re¬ 
minding one of a Discosia. 
Scolecotrichum caric^e, n. sp. —On living leaves of Carica papaya . 
Lake Worth, Fla., March. 1891. (L. M. Underwood.) Maculicolous. 
Spots scattered, l-2 lllm in diameter, yellow above, becoming white in the 
center, suborbicular and definitely limited; completely covered below 
with densely crowded, minute, sptueriaeforin, black-brown tufts of the 
fungus. Basidia oblong or subclavate, continuous, 20-22 x 6-7//, form¬ 
ing a compact periplierical layer on a minute tuberculiform base and 
bearing at their tips the ovate, uniseptate, pale brown, 12-20 x 8-10 //, 
conidi a. 
Macrosporium tabacinum, n. sp. —On leaves of cultivated tobacco 
(. Nicotiana tabacum ), Raleigh, N. 0., October, 1891. (Gerald Mc¬ 
Carthy) . Spots amphigenous, numerous, thin, white (rusty red or brown 
at first), suborbicular or irregular, 2-3 mm in diameter, definitely limited, 
with a narrow darker border. Fertile hyplue effused, 35-45 x 3-4 //, 
septate and torulose above. Conidia obovate, 15-25 x 10-12 //, sessile, 
or longer (35-45 //), narrowed below into a distinct stipe, 8-12 // long. 
The shorter conidia are mostly 3-septate and the longer ones about 
5-septate, one or two of the cells with a longitudinal septum. This is 
the u white speck” of the North Carolina planters. 
Macrosporium longtpes, n. sp. —On leaves of Nicotiana tabacum. 
Raleigh, N. C., October, 1891. (Gerald McCarthy.) Spots amphigenous, 
orbicular, rusty brown, 3-5 111111 in diameter; orbicular, zonate. The en¬ 
tire leaf becomes brown and then the spots are a shade lighter than 
the surrounding parts. Fertile liyphse effused on the spots, amphige¬ 
nous, but more abundant above, slender (40-70 x 3-4//., septate and 
often constricted at the septa; erect, more or less torulose above. Coni¬ 
dia clavate, 40-50 x 15-20 //., 3-7, mostly 5-6 septate, with two or more 
of the cells divided by a longitudinal septum, attenuated below into a 
distinct stipe 35-50 /;. long, and often septate and torulose. This differs 
from M. commune , liable, in its effused hyplue and smooth conidia, and 
from M. tabacinum. E. & E., in its brown, concentrically zoned spots and 
larger stipitate conidia. Known among the planters as u brown spot.” 
Brachysporium Canadense, n. sp. —Parasitic on Valsa ambiens? 
On bark of dead maple limbs. Ottawa, Canada, October, 1890. (Mac- 
oun No. 49.) Hyplue simple, brown; septate, 200-300 x 5//, forming 
dense, tobacco-brown, tuberculiform tufts, rising from the pustules of 
the Valsa. Conidia terminal, solitary, obovate-elliptical, pale brown 
1-3 septate, 20-40 x 12-15 //. 
Clasterosporium populi, n. sp. —On dead places in living leaves of 
Populus tremuloides. London, Canada, June, 1891. (Dearness, No. 759.) 
On leaves of Populus grandidentata. Wilmington. Del. (Commons, No. 
1806.) Conidia clavate, 1-2 septate, olive brown, 18-25 x 7-9 //, mostly 
a little constricted at the septa, and subtruncate-apiculate at the apex; 
pedicles very short, almost none, subliyaline. The conidia arise directly 
