— 314 — 



B. Leaves crisped when dry. Calyptra slightly hairy. 

 3.]tt.rhal)docarpum Mitten. 



» Leaves linear-lanceolate acute or subobtuse and subapiculate 

 carinate, not recurved, crenulate, papillose above, spreading-oper 

 and slightly flexuous when moist; upper cells round, basa' 

 oblong; costa yellowish percurrent. Perichetial leaves narrower, 

 more acute. Capsule oval gradually narrowed to pedicel and 

 to mouth, distinctly plicate; peristome simple: teeth short pak 

 fragile; lid subulate; calyptra covering capsule. Branches nol 

 crowded. — Amer. U. S., Florida»: Lesq. et Jam. 



127. Schlotheimia Bridel. 

 l.S.mncronifolia Hooker et Greville. — Macromitrium H. G.; 

 Schlotheimia Kindb. 



Leaves BubUuear or oblong-lingulate, obtuse often subtruncate, 

 carinate, sometimes recurved, broadly limbate at one side below, 

 entire indistinctly papillose not rugose, patent and faintly cur 

 ved when moist, slightly crisped when dry; cells very small 

 round-oval, lower marginal narrowly linear; costa dark brown, 

 depressed on upper side, very prominent at back, excurrent tc 

 a thick deflexed point. Perichetial leaves similar. Capsule 

 suboblong, contracted at mouth, not sulcate; teeth wanting; lid 

 rostrate; pedicel not long; calyptra glabrous or slightly rougl 

 above, laciniate, covering half capsule. Branches red-browE 

 densely crowded. Monoecious. — Trunks of palms r. Amer. 

 »U. S.»: Lesq. et Jam. (Cuba: Wright, herb. SuUivant, com 

 C. Mueller.) 

 2.S.Sullivantii C. Mueller; Sulliv. icon. muse. 



Diliers from the last: Leaves often rugose, neither recurved 

 nor limbate; basal cells rhomboidal; costa short-excurrent oi 

 (in perichetial leaves) subpercurrent. Capsule oblong-cylindric: 

 teeth deflexed when dry; segments ciliiform; calyptra lobulate, 

 rough above, covering whole capsule. — Trees r. Amer. U. S.; 

 com. Macoun and Cardot. 



128. Zygodon Hooker et Taylor. 



I. Eu-Zygodon. Leaves green papillose carinate not recurved: 

 cell-waUs thickened. Perichetial leaves not sheathing. Dioecious, 



II. Gymuocephalus. Leaves nearly plane or somewhat con- 

 cave, bluish when moistened; cells smooth with thin hyaline 

 walls. Monoecious. 



HI. Amphidiuiii. Leaves green papillose carinate often recur- 

 ved at one side; cell-walls not thickened. Perichetial leaves 

 sheathing. Capsule piriform, long-necked; peristome none. 



