554 BOTANICAL GAZETTE [JUNE 
breaking off of portions of the top (figs. 6, 11). Hysteriaceous 
forms have the fruiting disk nearly or quite covered. 
Strengthening these observations are the conditions to be 
observed in the new species of Clithris herewith described. C. 
clusiae (figs. 2, 3) shows the characteristically Discomycetous 
hymenium, and the tendency to expose the fruiting disk by the 
breaking off of portions of the roof of the ascoma. In the section 
it will be seen that the top has broken away completely, thus 
leaving the entire fruiting disk exposed. Almost the same con- 
ditions are to be found in C. minor. C. pandani (fig. 6) likewise 
shows the characteristically Discomycetous hymenium. Of the 
top of the ascoma there remain only small projections on either side. 
The center has broken away, leaving a very large part of the fruiting 
disk exposed. 
CurHRis Fries, 1823.—As originally described, Clithris is 
characterized in part by the possession of paraphyses coiled at the 
tip. Obviously, the form of the tips of the paraphyses cannot be 
held as a generic character, since the three species here described, 
which are clearly congeneric, show certain variations as regards 
the paraphyses tips, one only possessing the characteristic coiling. 
These species were collected by F. L. STEVENS in Porto Rico, and 
it is through his kindness that the author is allowed to include 
descriptions of them in this paper. 
Clithris clusiae, sp. nov.—Spots o.5-2 cm. in diameter, pale 
to yellow, uniformly dotted with the ascomata. Ascomata dark, 
subepidermal, erumpent, 950X468 u, rupturing with the epidermis 
in a long ‘slit. Paraphyses filiform, numerous, coalescing above 
in a pale yellow epithecium. Asci long, narrow, 150X7-8#, 
8-spored; spores filiform, 1X150y, —- when page i 
pale smoky or light brown. 
On dead leaves of Clusia rosea. Desecheo Island no. 1595 (type 
The ascomata.of this species are to be found not only in spots on ks leaf 
blade but also clustered very thickly on the petiole and the midrib. The 
paraphyses are not coiled apically, but slightly enlarged and straight. The 
tip bends just above the top of the asci, as is shown in fig. 4a. 
_Clithris minor, sp. nov.—Spots similar to those of C. clusiae. 
picomonte small, dark, 624220. Paraphyses numerous, filiform, 
