188 



23. Tortilla vinealis, Bridel, ^.Jlaccida. 



" ' On a stone by the Keswick road just out of the village of Ireby, 

 where it formed one large patch.' — Mr. Borrer.'''' 



The next paper is also an addition to Muscology, from the pen of 

 Mr. Wilson ; being a ' Description of a new British, and a new Ame- 

 rican species of Fissidens.' We give the characters of 



Fissidens Bloxami, Wils. Stem simple, very short, declining; 

 leaves obliquely linear-lanceolate, acute, immarginate, denticulate, the 

 dorsal lamina ending above the base; pedicel terminal; capsule erect; 

 operculum obliquely rostrate from a conical base, ring revolute. 



" Orton Wood, near Twycross, Leicestershire, on clayey banks with 

 F. taxifolius, April, 1844, by the Rev. A. Bloxam. Fruit ripe in Ja- 

 nuary." 



The American species is Fissidens obtusifolius, {Wils.) On a 

 dripping rock, Cincinnati, J. G. Lea, Esq., 1843. 



Under the head of 'Botanical Information,' we find a reprint of Mr. 

 Watson's Circular relative to the discontinuance of his great work on 

 ' The Geographical Distribution of British Plants,' previously noticed 

 (Phytol. i. 635). In place of this work, the design of which was found 

 to be too extensive to allow of its being completed with a reasonable 

 time, it is Mr. Watson's intention to bring out three separate treatises, 

 under the heads of — 1. Botanical Geography: 2. Areas of British 

 Plants : and 3. Localities of British Plants. Under each of these 

 heads the circular contains separate and distinct specimen-pages, so 

 printed as to exhibit the plan of each of the three books ; the printer 

 of the Journal has however contrived to defeat Mr. Watson's object, 

 by most ingeniously combining the three specimens into one (cer- 

 tainly not harmonious) whole. 



In a short article on ' Cistopteris montana,' discovered by Mr. Wil- 

 son on Ben Lawers in 1836 (Phytol. i. 671), the editor of the Journal 

 states that he has examined Plukenet's volumes in the British Muse- 

 um, with a view of verifying Swartz's reference to " Pluk. Phyt. t. 89, 

 f. 4, ' Filix alpina Myrrhidis facie Cambro-Britannica, &c.' " but 

 that no corresponding specimens exist there ; so that the supposition 

 of its having been found in Wales by Petiver, appears to be without 

 foundation. In Buddie's and Petiver's herbaria are Welsh specimens 

 "corresponding with Plukenet's figure, whose synonym is quoted ; 

 and these plants are Aspidium spinulosum, so that to us it appears 

 clear that that is the species intended by Plukenet. Mr. Wilson will 

 therefore remain the first discoverer of it in Britain. We may add, 

 that it is a native of the Rocky Mountains, in North America, and, as 

 such, is described in Hook. Fl. Bor.-Americana." 



