DiCRANACEJi.] 148 [Dicranum. 



Hab.— Among grass on sandy ground. Godalming {Mitten 1881) ! ! 



Resembling a small state of D. majits, but quite agreeing with D. scopariwii 

 in the structure of leaf. It appears to me to differ far more from D. 

 pallidum, than the latter does from typical D, scoparium. 



Var. g. turfosTun Milde. 



Tufts tall, glossy, yellow green above, dark fuscous below, with few 

 radicles. Leaves elongated, erecto-patent, subcuspidate at apex, almost 

 entire, or with a few obtuse teeth toward apex and at back. 



Syn. — D. scoparium var. turfosum Milde Bry. siles. 71. 



Hab. — Moorland bogs. Moor near Blasham beck, Lofthouse, Yorks. 



{Wesley 1878) ! ! 



This variety deviates much in aspect from all the other forms of D. sco- 

 parium, approaching somewhat to D. spadiceum by the dark colour of the lower 

 leaves. 



Var. e. orthophyllum Brid. 



In dense yellow-green tufts, radiculose. Leaves erect or subsecund, 

 rigid, elongated, entire or distantly and obtusely serrated toward apex. 



Syn. — D. scoparium var. orthophyllum Brid. 1. c. Hueben., Schimp., Milde, Juratz. 



Hab. — On heaths. Near Conway ! Ardingly, Sussex {Davies). Grewelthorpe 

 moor, Yorks. (H^Mi 1880)!! Carmendow, Derby (Ho/i 1882) ! ! Near 

 Penzance {Varenne 1882) ! ! 



Var. ^. paludosum Schimp. 



In tall dense bright green tufts, strongly radiculose. Leaves short, 

 broad, subsecund, sharply serrate, rugulose at apex. 



Syn. — D. scoparium var. paludosum Schimp. Synops. go. Milde, Juratz. 



Hab. — Moorland bogs. Glen Ogle, Perth [Boswell 1873) ! ! Near Loch 



Maree, Ross [Boswell 1875) ' ! Kinder scout {Hnlt 18S2) ! ! 



This very common but elegant moss is the centre of a group of closely 

 allied species, as it is also of a series of varieties, which are troublesome to 

 the student and difficult to define in words ; indeed, the acute bryologist 

 Mitten is inclined to regard D. scoparium as a compound of several species. 



The first point to which attention may be drawn in the typical form, is 

 the condition of the leaf-cells, which in the young and active stage are seen 

 to be crammed with chlorophyl and large oil-globules, these at a later period 

 are used up and all the cells are found to be empty, but in both states the 

 transverse pores are distinctly visible ; a patch of the central basal cells is also 

 often thin and hyaline. 



Dicr. pallidum Schimp. {D. scoparium Sulliv. muse, alleg. n. 155) I cannot 

 distinguish from D. scoparium, from which it does not differ in male infl. while 

 the paler color of the capsule cannot have much specific value. 



Dicr. Venturii De Not. of which I have original specimens from Dr. 

 Venturi, collected on the Alps of Saent, I must also refer to Dicr. scoparium, 

 and in this opinion I am confirmed by Limpricht, Lindberg and BosweU ; 

 although in aspect approaching D. Bonjeani it has the stout strongly serrated 

 nerve of the former species, the areolation throughout being rather laxer and 



