> d = 
B. Leaves long gen. entire or (in C. Mildei and C. setifolius) 
denticulate above, us. appressed when dry; costa long-exeurrent, 
a. Upper leaves us. with long whitish hairpoint. |... 
9.Cintroflexus Hedwig. — Dicranum H.; Campylopus Brid; 
C. polytrichoides Notaris; C. leucotrichus Sull. icon. m. H 
Leaves straight rigid not distinctly auricled, us. appressed - | 
when dry; basal lamina not involute; upper cells rhomboidal- 
oblong or often curved; costa very broad, deeply sulcate. Male 
plants with short reddish perigonial leaves. Tufts radiculose 
us. green or yellowish, sometimes blackish. Very r. fruiting. 
— Dry heaths and rocks. Eur. Switzerll Amer. »U. S.»; Sulliv. 
10.C.brevipilus Br. eur. ! 
Differs from the last: Leaves less rigid, sometimes faintly 
flexuous; basal lamina partly involute; costa not deeply sulcate, 
less broad; hairpoint short sometimes wanting. Tufts nearly 
eradiculose us. yellowish. Capsules unknown. — Moist heaths 
r. Eur. France: Renauld, com. Husnot. 
11.C.atrovirens Notaris. 
Leaves not rigid, sometimes flexuous or falcate, us. auricled; upper 
cells gen. oblong or vermicular; costa not deeply sulcate, 
not very broad. Tufts sparingly radiculose us. blackish or dark 
green. Very r. fruiting. — Wet rocks and peaty ground. Bur. 
Switzerl.!| Norway: R, Hartman. France: Husnot. 
* C.adustus Notaris. | 55 
Leaves nearly straight, less distinctly auricled; upper cel 3 
often rhomboidal. Tufts blackish brown when dry. Capsules 
unknown. — Dry rocks r. Eur. Switzerl. in higher subalp. - 
region near Faido! x 
12.C.graeilicaulis Mitten. ay 
Differs from C. atrovirens in not auricled leaves; upper cells — 
often rhombic. »Capsule immersed in the comal leaves»: Lesq: — — 
et Jam. Amer. r. U. S., Florida: Austin, com. Cardot. e 
*C.angustiretis Austin. — Dicranum Austin; Campylopus — 
Lesq. et Jam. Pj 
»Leaf-cells much longer, sublinear, the alar dirty red. Amer. - 
U. S., Florida»: Lesq. et Jam. 
b. apes; oett distinet (hyaline) hairpoint, sometimes - 
exc. C. Mulder) faleate or r. (in C. setifoli i i e 
EC LM ae ee a 
Leaves nearly appressed when dry, straight, less rigid than — 
in C. introflezus, sometimes denticulate above; auricles gen. not i 
much distinct; upper cells oval-rhombic; costa not much deeply 2 
