28 I.ESQUEREUX CATALOOFE 



FONTINALACE^E. 



PONTINALIS, Dill. 



190. P. antipyretica, Linn. 



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

 Alpine Lake, near Silver Mts., Brew. 



191. F. Mercediana, spec. nov. F. antipyretica habitu similis, difT'ert : caulc graciliori, 



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

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

 vioribus inflatis, paucis ; peristomii interni, reti clathrato imperfecto ; extcrni 

 dentibus brevioribus, articulis distantibus, 18 to 20 ; operculo duplo breviori, 

 capsulae colore pallida. 

 Hab. on rocks, Merced river, Bol. 

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



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



the flattened branches, etc. 



DICHELYMA, Myr. 



192. D. uncinatum, Mitt. 



Hab. Fort Colville, Lyall. 



193. D. Swarzii, Lndb. 



Hab. upland swamps betweenKing'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. 



NECKERACE^E. 



NKOKERA. 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 confervas, or 

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

 (28) 



