
28 
the structure of the apothecia is generally similar in 
both ; but A. Bolanderi offers the first known instance, 
in Acolium, of spherical spores. Spermatia oblong, 
not unlike those of A. tympanellum (Nyl. Syn. t. 5, £. 
32) the length from thrice to thrice and a half ex- 
ceeding the diameter. 
Acotium chloroconium (sp. nova) thallo tenui plicato-ver- 
ruculoso glaucescente; apotheciis imnato-prominulis 
nigris disco flavovirid’-pulverulento marginem flavican- 
tem dein nigrum superante. Spore in theeis cylindra- 
eeis octone, parve, oblusissime cllipsoidece medio con- 
stricta, diam. viz duplo longiores, fusce. On Oak- 
bark (Quercus agrifolia) in company with Buellia 
oidalea, California; Mr. Bolander. Thallus compar- 
able, except in its minnteness, with that of A. tym- 
pandlum. Apothecia agreeing better with those of 
A. stigonellum,; from which the present differs in 
possessing a proper thallns, in its greenish-yellow 
bloom, and smaller spores. (*) 
Caricium subtile, Fr. Dead-wood, San Diego; Dr. J. 
G. Cooper. 
Tribe V. VERRUCARIACEI (Fr., 1821, Fee) Stizenb. 
DERMATOCARPON miniatum (L.) Eschw. Coast; Mr. 
Bolander. 
D. Guepini (Moug.) Coast (infert.) Mr. Bolander. 
D. rufescens (Ach.) Th. Fr. N. Mexico; Mr. Fendler, 
(*) Of other species, A. Javanicwm (Mont. & V.d. Bosch) 
Stizenb (Lrachylia, Ny!., Tuck. Obs. Lich, Pyrgillus, Ny| Syn.) 
found by the late Dr. Hale in Louisiana, is perhaps bardly to 
be expected. Acroscyphus however, (A. spha@rophoroides, Lev.) 
collected by Humboldt and Bonpland near Perote in Mexico, 
may not impossibly occur farther north. 
