48 ICONES MUSCORUM. 



DICRANUM DRUMMONDII, Midler. 



Tab. 33. 



Plants 'dense lateque caespitantes, superne amoeue virides, in- 

 fenie toraento compacto ferruginese. 



Caulis robustus, elatus, 2- 6-pollicaris, innovationibus erectis 

 ramosus. 



Folia caulina uiidique patentia, recurva et snrsum curvata vol 

 secunda, siccitate apice tortilia, e basi oblonga longe lanceolato- 

 subulata, falcata, convoluto-canaliculata, superne cellulis miniitis, 

 illis baseos subauriculata? ampliatis oblongo-rotundis rufulis, 

 nervo ai)planato pro folioriun latitudine angiisto excurrente vel 

 cum apice evanido parce undulata, apicem versus denticulata, 

 dorso papilloso exasperata. 



Flores pseudo-dioici ; gemmis masculis in tomento nascen- 

 tibus. " 



Capsule in pedicellis brevibus aggregates, cylindricse vel 

 oblongo-cylindricae, arcuatae, basi subventricosoe ; foliis perichaj- 

 tialibus in cylindrum convohitis plus minus subito longe et an- 

 guste subulatis ; operculo longe-rostrato ; dentibus peristomii 

 irregulariter bifidis ; annulo conspicuo simplici. 



DiCRANUM Drummondii, Muller, Synop. Muse. 1, p 356, and in Sulliv. 



Mosses U. S. p. 23 (1856). 

 DiCRANUM UXDULATUM, var. foliis angustioribus subtortuosis, Drummond, 



Muse. Amcr. 1, No. 86 (1828). 

 DiCRANUM ROiJUSTUM, W. P. Schimpcr, Synop. Muse. Eur. p. 94 (18G0) ; 



non Wils. Bryol. Eur. t. 24. 

 DiCRANUM Drummondii, Sulliv. & Lesqx. Muse. Exsiec. Amcr. (ed. 1), 



No, 69 et ed. 2, No. 88. 



Hab. Pine woods, Lake Superior, Agassiz. — White Moun- 

 tains, Penn Yan, Catskill Mountains, etc. 



To Mr. Wilson belongs the credit of having first ascertained 

 and stated (in Hooker's Journal of Botany, 3, p. 436, 1841) that 

 this moss was a distinct and new species. 



