146 KOTICES OF NORTH AMERICAN FUNGI. 



These two species depart in some measure from the characters of 

 the genus, inasmuch as the flocci are unbranched. 



688. Campsotrichum circinatum. — B. ^" C. — Floccis sursum cir- 

 rhosis anastomosantibus. 



On leaves of Magnolia grandiflora. Car. Inf. No. 1374. 



Forming brown orbicular little patches on the under side of the 

 leaves ; flocci rising from the decumbent mycelium, branched above 

 and curved, anastomosing with each other. 



689. Campsotrichum tenue. B. ^ C— Sparsum, molle ; floccis 

 rectis hie illic anastomosantibus; sporis minutisglobosis. 



On leaves of Magnolia grandiflora. Car. Inf. No. 1027, 

 Eavenel. 



Forming minute scattered soft tufts ; threads straight, slightly- 

 divided, springing from the decumbent mycelium ; sometimes 

 anastomosing by little lateral j^rocesses ; spores minute, globose. 



690. Oichitonium melleum. B. 4' C. — Granulseforme, floccis di- 

 varicatis, apicibus furcatis. 



On fallen branches in moist places. Car. Inf. No. 256. 



Forming little scattered honey-coloured granules, which exter- 

 nally bear divaricately branched threads, the tips of the branch- 

 lets forked. Unfortunately no spores were found in this very curious 

 production, which belongs to the genus proposed by Durieu and 

 Montague. No. 2329, on oak, seems to be a minute Tubercularia. 



691. nXyxottichum simile. B. 8f C. — Mqlle nigrum ; floccis fer- 

 tilibus brevibus lateralibus, sursum divisis ; capitulis sporarum 

 concatenatarum terminatis. 



On decaying Arundincn^ia. Car. Inf. No. 2161. 



Forming soft, dark-brown tufts, running frequently into lines ; 

 flocci articulated, bearing short lateral branchlets, divided into two 

 or three lobes above, and bearing a globose head of minute sporeS, 

 which form little necklaces. 



692. Menispoxa apicalis. B. ^ C. — Nigra ; floccis simplicibus, 

 articulatis ; sporis apicalibus curvatis pluri-nucleatis. 



On the under side of fallen branches. Car. Inf. No. 2238, 

 2517. 



Dark-brown; flocci springing from decumbent threads, simple, 

 articulated ; spores ajjicular, linear, curved, containing a row of 

 about eight nuclei. 



* Fusispoxium aurantiacum. Lh. — On Caiyhephorum tomen- 

 tosum. Car. Inf. No. 2359. 



On decayed cotton seed. Ravenel. No. 1582. 



693. Fusispoxium cinnabarinum. B. Jc C. — Efifusum, demum 

 crustaceum, cinnabarinum ; sporis brevioribus quadrinucleatis. 



On Acer negundo. Alabama, Peters. No. 3990, 

 Forming a continuous stratum, which in drying cracks up into 

 detached portions ; spores short, with four nuclei. 



