28 LESQITERBUX — CATALOGUE 



FONTINALACE^E. 

 FONTINALIS, Dill. 



190. F. antipyretica, Linn. 



Hab. Swamps, in stagnant water and Coast Ranges in rivulets, Bol. Biy., 

 Alpine Lake, near Silver Mts., Brew. 



191. F. Mercediana, spec, nov. F. antipyretica habitu similis, differt : caule graciliori, 



distycho, raro trigono folioso ; foliis acntius carinatis, plicatis, baud vel vix 

 decurrentibus ; areolis foliorum superne angustioribus, vacuis ; alaribus bre- 

 vioribns inflatis, paucis ; peristomii intend, reti clathrato imperfecto ; externi 

 dentibnsbrevioribns, articulis distantibus, 18 to "JO ; operculo duplo breviori, 

 capsulse colore pallida. 

 Hab. on rocks, Merced river, Bol. 

 This species has the facies, color and peristome of F. dalecarlica, Brch. and 



Schp., differing essentially from it by the entire (not lacnnose) teeth, the longer capsules, 



the flattened branches, etc. 



DICHELTMA, Myr. 



192. D. uncinatum, Mitt. 



Hab. Fort Colville, Ltjall. 



19?>. D. Swarzii, Lndb. 



Halt, upland swamps between King's and Kaweah rivers, Brew.; swamps near 

 Mendocino city, and pools at the foot of Mt. Dana, Bol.; no fruit found. 

 This moss agrees in every point with Schimper's description of the species, and 

 presents two forms far different in appearance. One, pale green colored, shining, with, 

 long, scarcely branching stems, and appressed, nearly straight leaves. It grows in 

 prairie swamps, which are dry in summer. The other, black or brown colored, with 

 stems much divided in horizontal short branches and falcate-uncinate leaves. 



NECKERACEiE. 



NECfKERA. Hedw. 



194. N. Menziesii, Hook. 



Hab. on rocks, in deep shaded gulches, Bol.; base of trees, near Crescent 



City, Brew ; Fort Colville, Lyall. 



From the Russian valley, Mr. Bolander has sent remarkable specimens, with 



leaves and branches covered with capillary filaments resembling tufts of conferva?, or 



of Hypnum confervoides. These filaments are generally simple, emerging from the 



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