68 PATAGONIAN EXPEDITIONS I BOTANY. 



riores erectse, convolutae, apice cito contracts, breviter acutatae, nervo 

 infra apicem evanido, cellulis anguste elongatis, parietibus valde incras- 

 satis, apicalibus ceteris multo breviorlbus ; seta erecta stricta c. i cm. alta, 

 siccitate sinistrorsum torta, flavo-brunnea ; theca oblongo-ovalis, c. 1.8 

 mm. longa et 0.6 mm. crassa, pallide brunnea, leptoderma macrostoma, 

 siccitate longitudinaliter subrugosa; annulus nullus; denies peristomii 16, 

 subulati, c. 0.163 mm. alti et basi 0.03 mm. lati, remote trabeculati, tra- 

 beculis c. 7 sat crassis, inferne aurantiaci et laevissimi, superne pallidiores, 

 fere hyalini et minutissime papillosi, apice baud fissi ; operciilum conicum, 

 oblique rostratum, rostro theca subaequilongo ; sporce 0.016-0.020 mm. 

 magnae, laevissimae. 



Hab. Patagonia australis. 



Closely resembling Dicranoweisia crispula (Hedw.) Lindb. and nearly 

 allied to that species, scarcely differing save in its peristome, the teeth of 

 which are shorter and more slender than in the aforenamed species. It is 

 also remotely trabeculated and papillose only in its upper part, sometimes 

 nearly quite glabrous. 



From Dicranoweisia austro-crispula (C. Mull.) Par. it differs, to judge 

 from the diagnosis, by its shorter and oval capsule and its shorter and 

 more rigid leaves. 



Nearly related also to Dicranoweisia antarctica (C. Mull.) Par., differ- 

 ing from that species by the middle and upper round-quadrate cells of its 

 leaves. 



Gen. DICRANUM Hedw. 



DlCRANUM BILLARDIERI Schwaegr. 



Hab. Fuegia australis. 



DICRANUM NIGRICAULE Aongstr. 

 Hab. Patagonia australis. 

 Fuegia australis ad Villarino. 



DICRANUM ROBUSTUM Hook. fil. et Wils. 

 Hab. Fuegia australis. 



DICRANUM AUSTRALE Besch. 

 Hab. Fuegia australis ad Villarino. 



DICRANUM LEUCAPTERUM C. Mull. 

 Hab. Fuegia australis. 



