156 NOTICES OF NORTH AMERICAN FUNGI. 



triseptate .002 long, with a pedicel of the same length, attenuated 

 downwards. Quite distinct from the last species. 



* Pestalozzia Laurina. Mont. — The spores slightly shorter than 

 in an authentic specimen. 



On leaves of Laurus Caroliensis. Car. Inf. No. 2712. 



491. Pestalozzia concentrica. B. $ Br.— Pustulis concentricis e 

 macula pallida oriundis ; sporis triseptatis, utplurimum mono- 

 chaetis. 



On leaves of Pyrus. Car. Inf. Raven el. No. 1354. On apple 

 leaves. Mountains of Upper Carolina. No. 4497. On Crataegus. 

 Alabama, Beaumont. No. 4607. On Castanea pwnila. Beau- 

 mont. No. 5094. 



Pustules concentrically arranged in the more typical form on a 

 pallid or white spot; spores rather variable in form, about -001 

 long, with, in general, a single oblique process at the apex, more 

 rarely with a three-threaded crest. The process is sometimes quite 

 horizontal. Nearly allied to P. monochceta, Desm. 



492. Cheirospora Micheneri. B. $ C. — Soris elevatis, minutis ; 

 sporis longe pedicellatis globosis vel irregulariter obovatis, fuscis e 

 cellulis globosis indefinitis membrana tenui circumdatis. 



On hornbeam. Pennsylvania, Michener. No. 4315. 



Forming little elevated pustules ; spores with long slender hya- 

 line pedicels, which are sometimes forked, brown, globose, or 

 irregularly obovate, consisting of a number of cells contained 

 within a thin membrane. 



* Nemaspora crocea. P. — On bark of various trees. Car. Inf. 

 Ravenel. No. 925. Curtis. No. 1145, 1165. 



* Nemaspora aurea. Fr.— Michener. No. 3819. 



493. Nemaspora pruinosa. B. $ C. — Pustulis pruinosis, intus 

 cellulosis ; sporis minutissimis. 



On Ecliino cactus. Massachusets. Murray. No. 5461. 

 •Pustules gregarious, elevated, distinctly pruinose, irregularly 

 cellular within ; spores extremely minute, subelliptic. 



494. Nemaspora rufa. B. & C. — Pustulis irregularibus applanatis 

 intus cellulosis ; sporis minutissimis motu Browniano praeditis. 



On branches of Magnolia. No. 4555. 



Pustules irregular, depressed, black cellular within ; spores ex- 

 tremely minute, subglobose, endowed with Brownian motion. 



495. Nemaspora decipiens. B. $ R.— Pustulis subcortice abditis ; 

 sporis brevibus filiformibus curvulis pedicellis brevioribus. 



On bark, which is soon covered with the spores, so as at first 

 sight to look like Corticium viscosum. Sulphur Springs. Car. Sup. 

 Ravenel. No. 1519. 



Pustules completely concealed by the bark, sending out innu- 

 merable very short linear, slightly curved, yellowish spores, which 

 spring from pedicels rather longer than themselves. 



