132 



Caules in csespitibus laxis nascentes, spithamaei et ultra, pro- 

 cumbentes, flexuosi, pinnati, pinnis gracilibus attenuatis, 

 remotis, patentibus; longioribus iterum pinnatis. Folia 

 subarcte disposita, disticha, oblonga, ramorum fere lan- 

 ceolata, acuta, omnino enervia, transversim undulata, 

 apice serrulata, pallide viridia. Perichcetialia ; exterior a 

 late ovata, acuta, subsquarrosa ; interiora sensim longiora, 

 longe acuminata, circumvoluta. Seta lateralis, perichaetii 

 longitudine. Capsula paululum exserta, erecta, ovalis, 

 rufo-fusca. Operculum siiblonge-rostratuin, rostro paulu-, 

 lum curvato. Peristomium luteum : dentibiis transversim 

 striatis lineaque longitudinali notatis: Cilia his alternantia, 

 transversim striata. 



Our indefatigable Naturalists, Messrs. Menzies, Scouler, 

 and Douglas, who have explored the Botany of the north- 

 west coast of America, have added two beautiful species of 

 Neckera allied to Neckera crispa, to the Muscologia. One, 

 N. Menziesii, having been discovered as far into the interior 

 of the country as the Rocky Mountains, is published under 

 that name by Mr. Drummond in his admirable Musci Ameri- 

 cani, (No. 162.) The other I have now the pleasure of 

 dedicating to Mr. David Douglas, who, not content with 

 accomplishing to the fullest extent the object of his mission, 

 in securing a most extensive and inestimable collection of 

 plants, both living and dried, for the Horticultural Society, 

 suffered no Cryptogamic productions that came in his way to 

 escape him. His Herbarium contains many rare and some 

 new species. 



Fig. 1, Plants : natural size. Fig. 2, Cauline leaf Fig. 3, 

 Leaf from a branch. Fig. 4, Perichsetium and fruit. 

 Fig. 5, Outer perichaetial leaf Fig. 6, Inner do. Fig. 

 7, Teeth of the outer peristome. Fig. 8, Ciliee of the 

 irmer do. : — magnijied. 



