I860.] REVIEWS. 283 



intermixed with H. tunhridgense. In this locality and that at Castle Waller 

 the Filmy Ferns strictly confine themselves to the Old Ked Sandstone grits 

 which here overlie the Silm'ian slates. This is veiy remarkable sometimes, 

 as the grits are only a few inches thick ; and as regards exposure, etc., the 

 slates wovdd seem just as favourable as a habitat. It is worth inquiring 

 whether these plants are geological in their distribution, or not." 



Professor R. W. Smith at the same meeting reported that in a 

 hmited area he had collected twenty-seven species of Ferns (we 

 wish the Professor had informed us what is the extent of this 

 limited area) . The following are the names of species commu- 

 nicated, viz. Hymenophyllum tunhridgense, H. Wihoni, Cystopie- 

 ris fragilis, C. dentata, Asplenium viride, A. Adiantum-nigrmn, 

 A. Trichomanes, A. Ruta-murm^ia, Ceterach afficinarum, Lastrea 

 Oreopteris, L. recurva, Polypodium Phegopteris, Lastrea spinosa, 

 L. uliginosa, L. rigidum (? rigida) ; one of these, L. uliginosa, 

 recorded as Irish for the first time ; Polypodium vulgare, Ophio- 

 glossum vulgatum, Osmunda regalis, Scolopendrium vulgare, var. 

 multifidum, Blechnum horeale, Polystichwn angulare, P. aculea- 

 tmn, Lastrea dilatata, L. Filix-mas [affinis and Boreri) , Athyrium 

 Filix-fosmhia (var. incisum and convexum) , Pteris aquilina, Poly- 

 stichum angulare, var. grandidens. 



There are other learned papers in this number of the Review, 

 but our space is exhausted. 



Catalogus Plantarum in Algeria sponte nascentium. Auctore 

 G. MuNBY. Oran, 1853. London: W. Pamplin, 45, Frith 

 Street, Solio Square. 



Another botanical work, also by a French author, on north 

 African botany, has just been received, one tout a fait differ- 

 ent from the ' Manuel ' just noticed. Still there are considerable 

 resemblances between both the Belgian and British Floras and 

 that of the north of Africa, though the regions of Algeria and 

 Barbary are very remote from the British Isles. The centre of 

 Great Britain is just 20° north of the centre of the tract botan- 

 ized by M. Munby, and the centre of Belgium is only about 

 12i° north of Algeria. Yet it is believed that there are common 

 to Algiers and England, many more plants than there are com- 

 mon to the former and Belgium. 



