268 NEW HEPATIC^. 



simplicibus, adscendentibus, subflexuosis ; foliis imbricatis, 

 patentibus, late dimidiato-ovatis, obtusis, margine ven- 

 trali ciliato, cristato, dorsali marginato, integerrimo, re- 

 curvo ; calyce terminali, emerso, ovato, oblique truncate-, 

 ore spinoso. 

 Hab. Pichincha, picked out of specimens of P. Pichinchensis, 

 Prof. W. Jameson. 



Stems straggling, brownish-olive. Shoots 2-3 inches high. 

 Leaves concave, sometimes secund, their cilia elongated and 

 articulated. Pericheetial leaves erect, shorter than the calyx, 

 more round than the cauline. Perigonia are linear spikes in 

 the course of the shoots, their leaves are destitute of cilia. 

 The thickened margin and the cilia are somewhat browner 

 than the rest of the leaf, and this margination does not occur 

 in P. longispina, Gottsche et Lind. MSS. 



23. P. nodosa, Tayl. ; caule caespitoso, adscendente, subra- 

 moso ; foliis imbricatis, erecto-patentibus, subrotundis, 

 margine utroque recurvo, infero apiceque dentatis ; pen- 

 goniis iteratis, breviter spicatis. 



Hab. North America. Thomas Drummond, Herb. Hook. 



Tufts wide, olive-brown. Stems scarcely 1 inch long, their 

 tops reclining. Leaves closely imbricated, the anterior mar- 

 gin slightly decurrent, much recurved and so the dorsal base 

 of the leaf is tumid ; the outline of the leaves is irregular, 

 sometimes emarginate, sometimes with a cilia towards the 

 base, but always with a deep groove towards the middle of 

 the base. Perigonia 2, 3, or more in the course of a single 

 shoot, which thus appears nodose ; perigonial leaves ventri- 

 cose, containing each a single anther, very rarely two, 

 Anthers large, opaque, pedicellated. This reminds one of P. 

 bifaria, Lind., but in this plant the leaves are more decurrent 

 and are acuminated. 



24. P. fusifera, Tayl. ; laxe caespitoso, erecto, ramoso, fonts 

 imbricatis, erecto-patentibus, elongate semicordatis, obtusis, 

 recurvis, margine infero apiceque dentatis, supero integer- 

 rimo, decurrente, utrinque recurvis ; perigoniis plurimis, 

 spicato-lanceolatis. 



