406 ANOPHYTES 



TRIBE 5. GRIMMIA V CEAE. 



535. GRIMM'IA, Ehrh. 

 [Named for F. C. Grimm ; a German Botanist.] 



Calyptra mitriform, lobed at base. Capsule regular. Peristome of 

 16 equidistant lanceolate teeth, which are entire or perforated, 

 rarely 2- or 3-cleft at apex. Monoicous, or dioicous. Sterile fl. 

 axillary. 



1. Cc. Pennsylvania, Schwaegr. [Pennsylvanian] : Leaves 

 elongated-lanceolate, with a long diaphanous point ; capsule oval, 

 immersed ; lid conical, pointed. On rocks ; common. 



2. Cr. apoc Jirpa, Hedw. [Fruitful] : Leaves ovate-lanceolate, 

 recurved-spreading, rather diaphanous at apex ; capsule oval, im- 

 mersed; teeth of the peristome entire or sparingly perforated, 

 bright purple. On rocks, along streams. 



3. Cr. Mllhlenbergii, Brid. [Muhlenberg 's] : Leaves linear- 

 lanceolate, obtuse, concave, when dry incurved, the nerve vanishing 

 below the point; pedicel exserted; capsule erect, oval; teeth of 

 the peristome linear, deeply cleft ; lid subulate from a conic base ; 

 calyptra large, mitriform, longitudinally plicate, crenate-lacinate 

 at base. Dry rocks. 



4. G-. trichopliyl'la, Grev. [Hair-leaved] : Stems elongated, 

 loosely tufted; leaves lax, wavy, lanceolate, gradually tapering 

 into a diaphanous point, the margins recurved; pedicel flexuose 

 and curved ; capsule elliptic-ovate, sulcate ; lid beaked. On rocks, 

 in streams. April, 1851. 



536. RACOMIT'RIUM, Brid. 



[Gr. rdkos, a shred, and mitrion, a little cap ; from the torn calyptra.] 

 Calyptra mitriform, or campanulate-subulate, laciniate at base. Cap- 

 sule regular. Peristome of 16 filiform and deeply 2- or 3-cleft teeth. 

 Lid conical, subulate. Dioicous. 



1. R. Ui i C roc ar poll, Brid. [Small-fruited] : Stems ascend- 

 ing, branched ; leaves spreading, lanceolate, acuminate, the upper 

 ones with the points diaphanous and somewhat dentate. Moist 

 rocks. 



537. IIEDWIG'IA, Mrh. not of Hook. 



[Dedicated to Prof. J. G. Hedwig ; a German Botanist.] 



Calyptra conical. Capsule globose. Peristome none. Lid plano- 

 convex. Monoicous. Sterile fl. axillary. 



1. H. Ciliata, Hedw. [Ciliafe]: Leaves spreading, sometimes 

 secund, ovate-lanceolate, the apex diaphanous and erose-denticu- 

 late ; perichaetial leaves ciliate ; calyptra minute, smooth, or hairy. 

 On rocks : common. Plant glaucous green ; stems 1 to 3 or 4 

 inches long, branching. The Hedwigia of HOOKER (English Flora), 

 belongs among the PLEUROCARPI. 



