Feij., 1887.] CERCOSPORA, GLOEOSPORIUM, CYLINDROSPORIUM. 
17 
below ; tufts ampliigenous, crowded in the central part of the spots; 
hyplise subolivaceous or smoky-hyaline, arising from a tubercular base, 
coarse, nearly straight, subtruncate above and finally 5—3-septate, 30—40 
x 4—5 y ; conidia linear-obclavate, hyaline, 80—120 x 4—5 y. multiseptate. 
Cercospora Cruciferarum, E. & E.—On Baphanus sativus , Mis¬ 
souri (Galloway, 129) and on Sisymbrium officinale , Delaware (Commons). 
Spots ampliigenous, round, white with a black, raised border, small 
(1—2 millim.); liyphse tufted, ampliigenous, fuscous, distinctly septate, 
subgeniculate, subtruncate above and coarsely toothed, 80—120 x 4 — 5 y ; 
conidia hyaline, slender, faintly multiseptate, 100—150 x 44 y. The char¬ 
acter of the spots ns well as the long hyplise and conidia will distinguish 
this from C. Nasturtii, Pass., and C. Armoracice , Sacc. 
Cercospora platanicola, E. & E.—On leaves of Platanus occi¬ 
dentals, Louisiana, October, 1880. Langlois, No. 557. Spots amphigen- 
ous, small (1—3 millim.), scattered, irregular in shape and indefinitely 
limited, dark dirty brown ; h\phse ampliigenous, in small, dark-colored, 
inconspicuous tufts with a sphseriseform, tubercular base, short, subfer- 
ruginous, sparingly toothed ; conidia hyaline, narrow-obclavate, mostly 
curved, nucleate, 30—40 x 2—21 y. On the same leaves are larger (1—1 
cm.) rusty-brown spots, on some of which is a Phylloslicta with small 
(4—5 x 21 y), hyaline sporules. The Cercospora is also found sparingly on 
some of the large spots, but is mostly confined to the smaller, darker- 
colored spots. 
Cercospora prunicola, E. & E.—On leaves of Prunus Americana , 
Point ’a la Hache, La., October, 1886. Langlois, ISTo. 542. Spots amphig- 
enous, subindefinite, purplish-brown, 2—3 millim. in diam.; liyphse 
mostly hypophyllous, short (10—15 /'•), slightly colored, arising from a 
distinct tubercular base; conidia nearly hyaline, nucleate, becoming 
faintly three or more septate, 30—45 x 21 y, much smaller and paler than 
those of C. circumscissa , Sacc., or C. cerasella, Sacc. 
Cercospora atromaculans, E. & E.—On leaves of Arabia spinosa , 
Natchitoches, La., September, 1886. Langlois, No. 707. Spots amphig- 
enous, black, subindefinite, orbicular, 1—1 cm. in diameter, few on a leaf, 
roughened by the tubercular-fasciculate tufts of liyphse on both sides of 
the leaf; hyplise brown, septate, irregular in outline, undulate, jagged 
and toothed and crooked above, about 75 x 4 y ; conidia obclavate, sub- 
fuscous, granular and nucleate, 40—75 x 3—4 y. 
Cercospora Cinchona, E. & E.—On living leaves of Cinchona in a 
garden, Lafayette, La., September, 1886. Langlois, No. 720. Spots 
ampliigenous, definite, nearly black above, with a narrow, slightly raised 
margin, brownish-black below, 2 —3 millim. in diam.; hyphse epiphyllous 
in small, scattered, sphseriseform tufts, very short; conidia cylindrical, 
yellowish-hyaline, nearly straight, becoming faintly 3-septate, 25-35 x 
2 \y. 
Cercospora Kaki, E. & E.—On living leaves of Diospyros Kaki 
(Japan persimmon) in a garden, Lafayette, La., September, 1886. Lang¬ 
lois, No. 722. Spots ampliigenous, irregular, 4—1 cm. in diam., definite, 
rusty-brown, becoming gray with a black center above, rather lighter and 
less definitely-limited below; liyphse mostly epiphyllous, subhyaline, 
short (10—15 x 3 y), forming scattered tufts with a tubercular base; 
