RAVENEL’s AMERICAN FUNGI. 
49 
Hysterium (Hypoderma) virgultorum. D.C. var. petiolare. 
On petioles of Liriodendron. Aiken, S. Car. (2599). 
Actidium ? diatrypoides (pro. tem.) 
On Carpinus. Darien, Georgia (2425). 
On Ostrya (2331). 
Asterina cuticulosa. Cke. 
Sparsa, orbicularis, atro-brunneis. Peritbeciis pelliculosis, 
applanatis; mycelio obsoleto ; ascis globosis (-025 mm.) ; sporidiis 
ellipticis, uniseptatis, utrinque rotundatis, subconstrictis, hyalinis 
(•01 x -005). 
On leaves of Ilex opaca. Darien (2486). 
The globose asci are scattered at regular intervals beneath the 
thin cuticle, which is slightly elevated in those places. A some- 
what abnormal species. 
Capnodium citri. B. <£ M. 
On Citrus. Darien, Georgia (2415). 
Ittyriangium Curtisii. B. & JDesm. 
On hickory. Darien. 
IVIeliola amphitricha. Fr. 
On Persea (2499). 
IVIeliola tenuis. B. <f- C. 
On Arundinaria (2482). 
Scarcely different from M. amphitricha. 
Sphaerotheca pannosa. Lev. 
On Rosa. Aiken, S. Car. (2568). 
SACCARDIA. Gen. nov. 
Mycelium arachnoideum, plerumque evanidum ; conceptacula 
globosa; sporangiis globoso -ovatis, 8 sporis repleta; sporis ellip- 
ticis, polyblastis ; appendiculae nullae, aut cum mycelio intertextae. 
Sac cardia quercina. Cke. 
Hypophylla. Mycelio evanido ; conceptaculis gregariis vel 
sparsis ; sporangiis globosis, octosporis ; sporis ellipticis, hyalinis, 
merenchy matis '02 X '01 mm. 
On leaves of Quercus virens. Darien, Georgia (2504), 
Allied to Erysiphe. Dedicated to Professor Saccardo, of Padua, 
whose valuable contributions to Mycology merit distinct recogni- 
tion. 
Sphaerostilbe gracilipes. Tul. 
On Platanus (conidia). Aiken( 1820). 
Hypocrea chlorina. Cke. 
Applanata, discoidea, elliptica, vel elongata, argillacea, intus 
citrina. Peritheciis immersis, brunneis ; ostiolis punctiformibus ; 
ascis clavatis ; sporidiis biseriatis, elongato-ellipticis, 4 nucleatis, 
demum triseptatis (-025 X '009 mm.). 
On hickory. Darien (2411). 
A very curious species, but slightly elevated above the bark, and 
of the same colour ; stroma bright sulphur coloured, in which the 
brown membranaceous perithecia are immersed. 
