178 BEYACE.E. [Orthotrichum. 



and empty ; teeth recurved when dry ; cilia broad, reddish, as 

 long as the teeth, slightly erose on the pellucid borders. — 

 Muse. Brit. 76, t. 22 ; Bryol. Eur. t. 221 ; Wilson, Eng. Bot. 

 t. 2834. 



Var. papillosum. Leaves more highly papillose. — 0. 

 papillosutn, Hampe, Linnaea, xxx. 458. 



IIab. On trees in California, and on the western slope of North 

 America, common. The variety is scarcely worthy of notice, as the 

 IDapillte vary in prominence, even on the same specimens. 



67. MAOROMITRIUM, Brid. (PI. 2.) 

 Calyptra campanulate-plicate, more or less deeply laciniate at 

 base. Peristome none, or simple, or double; the outer of 16 

 teeth, lanceolate, free or geminate, granulose, whitish or red- 

 dish brown ; the inner formed of a more or less enlarged mem- 

 brane, truncate or split into teeth similar to the outer ones: 

 annulus none or simple, rarely present. 



1. M. Sullivantii, Muell. Plants acrocarpous, becoming 

 j)leurocarpous by innovations, entangled and loosely cespitose, in 

 wide decumbent creeping or pendent tufts, reddish brown and 

 rigid : leaves crowded, open, erect when moist, closely imbricate 

 when dry, lanceolate from the narrowed decurrent base, gi-adu- 

 ally acuminate, deeply excavate in the middle of the base, 

 carinate, costate to near the apex, slightly recurved on the 

 borders ; areolation nearly round, dense, slightly papillose : 

 floAvers monoecious, the male in axillary or terminal buds ; outer 

 perigonial leaves ovate, the inner obovate, apiculate, hyaline, 

 erose-dentate from the middle upwards : calyptra hairy, covering 

 the whole capsule : capsule oval-cylindrical, plicate at the base 

 and under the orifice when dry, emergent on a slender pedicel, 

 about one cm. long ; lid conical, subulate ; peristome almost 

 none, the outer imperfect, the inner a short truncate membrane. 

 — Bot. Zeit. XX. 361. M DregeA, Sulliv. Mosses of U. States, 

 31, and Icon. Muse. 59, t. 37 ; Sulliv. & Lesq. Muse, Bor.-Am. 

 Exsicc. n. 128. 



Hab. On the bark of old pine trees, top of Jonah or Bear Mountain, 

 Georgia {Lcsqiiereux). 



2. M. Fitzgeraldi. In its dark brown color, its short 

 yellowish branches sparingly fruiting, and also in the very hairy 



