ICONES MUSCORUM. 103 



FONTINALIS DISTICHA, Hook, & Wils. 



Tab. 63, 64. 



Plants graciliores, habitu coloreque forrois minoribus antece- 

 dentis similliinae. 



Caulis 7 - 10-uncialis, tenuis, inferne defoliatus, rigidulus, 

 elasticus, pinnatira et sub-bipinnatim ramulosus, ramulis remoti- 

 usculis late patentibus breviusculis substrictis. 



Folia tenerrima, indistincte trifaria, laxe incumbentia, anguste 

 lanceolata, sensira longe acuminata, modice concava, apice le- 

 nissinie serrulata, reti tenui-vermiculari. 



Flores dioici : masculi numerosissimi ; antheridiis longius pe- 

 dicellatis. 



Capsula gracilis, elongato-cylindracea ; peristomii granuloso- 

 papillosi dentibus linearibus 14 - 15-articulatis inter articulationes 

 plus minus pertusis ; ciliis superne clathratis inferne liberis ap- 

 pendiculatis ; calyptra et operculo F. Lescurii. 



Fontinalis disticha, Hook. & Wils. in Drumm. Muse. Amer. Coll. 2, No. 



151; Sulliv. Muse. Alleghan. No. 190; Mosses U. States, p. 54; Sulliv. & 



Lesqx. Muse. Bor.-Amer. Exsicc. (ed. 1), No. 227. 

 Pilotrichum distichum, C. Miill. Synop. Muse. 2, p. 150 (excl. Syn. F. 



disticha var., Sulliv. Muse. Alleghan. No. 192). 



Var. /3. tenuior ; caule ramulisque elongatis flexilibus ; foliis 

 angustioribus rigidioribus convolutis laxius areolatis ; dentibus 

 peristomialibus lanceolato-subulatis vix lacunosis crebrius articu- 

 latis. 



Hab. Louisiana, Drvmmond. — Var. 0. Southern Kentucky, 

 Lesquereux. 



A well-marked species, readily distinguished from its congeners 

 by its slender and delicate habit, and by its long and narrow 

 capsule. 



