IC0NKS .Ml'SCOIMM. 



HYPNUM SULLIVANTII, Spruce. 



Tab. 105. 



Plants minores, nunc ascendentes, densius ca?spitantes, fas- 

 tigiato-ramosae, nunc laxc demisso-intricatac, pallide virides absque 

 nitore, inferne sordide flavescentes. 



Caulis subuncialis, tenuis, rigidiusculus, divisus, vage et sub- 

 fastigiatira ramulosus ; ramulis rectis 3 - 7-linearibus. 



Folia erecta, laxius incumbentia, ovato-lanceolata et lineari- 

 lanceolata, longe tenui-acuminata, basi concava, ibidemque mar- 

 gine recurva, toto ambitu serrulata, dorse- hie illic papillis con- 

 spersa ; costa supra medium evanescente ; areolatione minuta e 

 cellulis flexuoso-linealibus obtusis, illis ad angulos insertionemque 

 decurrentem subquadratis : pericliaetialia e basi oblonga vagi- 

 nante filiformi-attenuata varieque flexa, subecostata. 



Flores dioici : perigonialibus subito longius acuminatis ; an- 

 theridiis paraphysatis. 



Capsula ovalis, oblonga, turgide gibboso-ovata, cernua ; pedi- 

 cello 4-7 lineas longo ubique tuberculato ; annulo subpersis- 

 tente ; peristomii dentibus lanceolato-subulatis firmis crebre ar- 

 ticulatis aurantiacis, cuticula dorsali transversim striolata, ciliis 

 luteolis dentes asquantibus in carina dehiscentibus, ciliolis binis ; 

 operculo breviusculo conico plus minus acuminato. 



Hypnum Sullivantii, Spruce in Gray, Man. Bot. 1848 ; Mull. Synop. 



Muse. 2, p. 430; Sulliv. Mosses U. States, p. 69 ; Sulliv. & Lesqx. Muse. 



Bor.-Amer. Exsicc. (ed. 1), No. 291. 

 Hypnum pr.klongum, var., Sulliv. Muse. Alleghan. No. 44. 



Hab. On the ground, margins of woodland brooks, <fec. 



This species is intermediate between H. jirmlongum, L., and 

 the Californian II. Whippleanum, Sulliv. ; differing from the first 

 in its much shorter operculum, and slenderly acuminate leaves 



