DECADES OF FUNGI. 311 
Tab. XII, fig. 5. a. Flocci. 5. Spores. More or less 
magnified. 
95. Cronartium asclepiadeum, Kze. var. Thesii, maculis 
obliteratis, tuberculis parvis sparsis, sporis subglobosis, peri- 
diis elongatis incurvatis extus minutissime ramentaceis. 
On Thesium umbellatum. Ohio. No. 205. T. G. Lea, Esq. 
Scattered over the under surface, not aggregate as in C. as- 
clepiadeum, where they seem usually to be confined to a de- 
terminate spot; peridia more minute; cells of the peridium 
longer; spores not so much elongated. 
It is possible that this may prove a distinct species, but 
the dry specimens exhibit no sufficient characters. 
96. Sphæria (Lignosæ) Zinctor, n. sp. effusus innatus planus 
E- Sculpturam matricis e mycelio miniate superficie referens, 
intus extusque ater; peritheciis elongatis, collo brevi, ostiolo 
Inconspicuo. | 
On dead Platanus occidentalis (button wood). Ohio. No. 
128. T. G. Lea, Esq. 
Forming a black widely effused stratum exhibiting all the 
markings of the matrix which is tinged to the depth of a 
quarter of an inch orange-red, black both within and without. 
Stroma hard 1 aline or more thick ; perithecia vertical elon- 
gated with a very short neck; ostiola not visible externally, 
€ven under a lens. 
Analogous to SpA. hypomilta, Mont. but by no means al- 
lied. It is rather related to SpA. stigma. The matrix is quite 
distinct from the wood though it exhibits on its surface all 
its markings, otherwise the species might be placed in the 
Section Concrescentes of which it has the habit. 
97. Sphæria (Circumscriptæ) Leaiana, n. sp. innata, stro- 
mate pallido laxo e cortice et ligno linea cireumscripto, peri- 
lis ellipticis ostiolis subconfertis elongatis lineolatis 
granulatis, sporidiis minimis curvulis. 
On bark of dead Hornbeam. Ohio. No. 130. T. G. Lea, 
Esq. | 
About 3 a line in diameter. Perithecia not numerous circi- 
nating elliptic seated on a pale stroma of rather a loose tex- 
