Buxbaumia.-} D I P L O PER I ST OM I. 143 



mixed them with Exotic specimens of the real plant ; thus con- 

 founding the two. We know, at least, that in such a state W. 

 acuta has much the appearance of the Dillenian F. capillacea. 



XXX. BUXBAUMIA. 



GEN. CHAR. Capsule oblique, gibbous ; Peristome double ; 

 the exterior of numerous filiform, jointless processes ; 

 the interior a plicate membranous cone ; Calyptra mi- 

 triform. (TAB. III.) 



The only species of this genus has truly a doable peristome ; 

 but its exterior is totally different from that of any other moss. 

 The processes are slightly torulose, but not jointed, of a reddish 

 brown colour, and of so peculiar a nature that they do not absorb 

 water even when immersed in it for a considerable length of time. 

 For a more full history of this genus, we must refer our readers to 

 the Sixth Number of the New Series of the Flora Londinensis. 



1. B. aphylla. (TAB. XXII.) 



Buxbaumia aphylla. Linn. Sp. PL p. 1570. Smith, Fl. Brit. />. 

 1148. Engl Bot. t. 1596. Hook, in Fl Loud. ed. 2. (with a figure.} 

 Moug. et Nestl n. 38. Funck, Deutschl Moose, t. 24. /. 1. Hook. 

 Fl. Scot. P. II. p. 139. Arn. Disp. Muse. p. 12. Schwaegr. Suppl. 

 v. 1. P. II. p. 65. Brid. Meth. p. 123. 



Buxbaumia viridis. Moug. et Nestl. n. 724. 



HAB. In a fir wood at Sprowston near Norwich. Near 

 Rosslyn. Mr. E. Maugham. Wood near Aberdeen. 

 Mr. Jackson. Selkirkshire, near the borders of Peeble- 

 shire. Mr. J. Stewart. Georgetown Hill, near Kin- 

 ross. Mr. Arnott. 



This most singular of mosses can scarcely be said to have 

 any stems. All that can be called a stem, (or perhaps more 

 strictly, a perichsetium,) resembles a small bulb covered with 

 hair-like processes, but which, when highly magnified, are 

 found, by Mr. Brown, to be true leaves, membranous, reticu- 

 lated, laciniated, and so narrow and minute, that they were 

 either entirely overlooked or described only as hairs by pre- 

 ceding authors. The fruitstalks, which are about an inch high, 



