50 
JOURNAL OF MYCOLOGY. 
[VOL. IV, No. B, 
erunipent-superficial, submembranaceous, black, £ min. in diameter, 
finally collapsing above; ostiolum papilliform ; sporules subglobose, 
olivaceous, 3£—4 «. 
Dothiorella decorticata, E. & E.—On decorticated wood of pop¬ 
lar, Louisiana. Langlois, Nos., 632, 633 and 639. Perithecia erumpent, 
depressed above, more or less confluent or connate, forming small (1—2 
mm.) subtuberculiform groups thickly scattered over the matrix or sca f - 
tered singly and partly overrun and fringed with scanty mycelium of 
brown threads; sporules ovoid with a gelatinous (?) envelope, hyaline, 
18—23 x 12—16 !>■ on stout basidia as long as the spores themselves. 
Strumella dealbata, E. & E.—On decaying wood, British Colum¬ 
bia. Prof. J. Macoun. Sporodochia occupying bleached areas on the 
surface of the wood, gregarious, erumpent, olive-black, tuberculiform, 
mostly flattened above, about 1 mm. in diameter and consisting of amass 
of brown, roughish, subglobose conidia 6—8 ! J - in diameter, snbcatenu- 
late or variously attached, the lower ones borne on short rudimentary 
hyphse or basidia. 
Amerosporium ilicinum, E. & E.—On living leaves of Ilex decidua , 
Plaquemines Co., La., June, 1886. Langlois, No. 654. Maculicolous; 
spots amphigenous, of irregular shape, 2—3 mm. in diameter, definite, 
mostly with a very narrow slightly raised border, around which is a nar¬ 
row belt of purplish discoloration, quite thin and finally deciduous, 
white above, rusty white below; perithecia about 100 in diameter, sunk 
in the substance of the leaf, their bases slightly prominent below, open 
above with the margin sparsely fringed with short (20 /■*), continuous, 
slightly incurved, black, bristle-like hairs which are finally deciduous 
when the perithecia seen from above appear like small pale black circles 
on the surface of the white spot; sporules oblong, 10—15 x 4 -5 !>■ (mostly 
12—14 x 4—4| ! J \ hyaline, continuous. Accompanied by a Macrosporium 
and Phyllosticta concomitans , E. A E., on some of the spots but the Phyl- 
losticta and the Amerosporium do not usually occur on the same spot. 
Amerosporium macroceleta, E. & E.—On dead sheaths and leaves 
of Phyncospofd macrostachya , Pointe ’a la Hache, La., December, 1886. 
Rev. A. B. Langlois, No. 842. Perithecia scattered, superficial, about 4 
mm. in diameter, hemispheric at first, at length open and shallow cup¬ 
shaped, with the margin sparingly fringed with stout, straight, obtuse, 
olivaceous hairs, continuous or sparingly septate, nearly opaque below, 
subhyaline or lighter above and 250—300 x 10—12 conidia fusoid, pale 
olivaceous, 2--3-nucleate, 10—12 x 1J /*, on slender basidia longer than the 
conidia. r 
Amerosporium sabalinum, E. & E.—On dead leaves of Salmi Pal¬ 
metto , Louisiana. Langlois, No. 676. Perithecia erumpent-superficial, 
cupuliform, 100-150 !>■ in diameter, fringed with a few spreading, straight, 
brown-black continuous hairs 15—20x6—7 V-; sporules fusoid-oblong, 
yellowish-hyaline, continuous, 5—8 x H—H /u 
