1863.] REVIEWS. 593 



The greatest elevation is 680 metres; the rocks are of the 

 transition class, between primary and secondary, viz. siliceous, 

 cretaceous, etc. 



The physical description of Ardenne fills up twenty-six pages 

 of our author's pamphlet, and the descriptive catalogue (c. I'ai- 

 sonne) about thirty-four. 



The whole number of Phaenogamous plants, with the Filices 

 and Fern-allies, is 663. Future researches will probably increase 

 this number to upwards of 700 species. 



The following non-British species are enumerated among the 

 plants of Ardenne, viz. Anemone sylvesiris, [Anemone Pulsatilla is 

 not one of the species of this tract,) Ranunculus platanifolius, 

 (there are only eleven species of the genus Ranunculus. The 

 Ranunculi Babingtoniani do not grow in Ardenne ?) Aconitum 

 Lycoctonum, Arabis arenosa,Lunaria rediviva, Thlaspi calaminai'e, 

 Genista germanica, G. sagittalis, Trifolium montanum, Orobus 

 vernus, Sedum aureum, Potentilla procumbens (this species has 

 been found in England, of spontaneous growth, but it is not yet 

 established here) , Epilobium collinum, Selinum carvifolium, Orlaya 

 grandiflora, Saxifraga sponhemica, Vincetoxicum o^cinale, Cus- 

 cuta densiflora, Gratiola officinalis, Digitalis lutea, D. grandiflora, 

 Linaria striata, Galeopsis dubia, G. intermedia, Stachys alpina, 

 Campanula Cervicaria, Specularia Speculum, Galium sylvaticum, 

 G. sylvestre, Centaurea Jacea, C. montana, Arnica montana, 

 Senecio Jacquinianus, Scorzonera humilis, Hia^acium Auricula, Ru- 

 mex scutatus, Eujjhorbia Cyparissias, Ornithogalum sxdphureum, 

 Phalangium Liliago, Orchis coriophora, O. incarnata, Calla palus- 

 tris, Juncus Tenageia, Luzula vernalis, L. albida, Carex canescens, 

 C. maxima, Baldingera colorata (a grass), Calamagrostis sylvaiica, 

 Poa serotina, P. sudetica, Bromus grossus, Festuca sciuroides, 

 Struthiopteris germanica, Asplenium Breynii, Lycopodium Chama- 

 cyparissias, L. complanatum. These are all the non-British 

 plants enumerated in this catalogue, barely a tenth part of the 

 whole. 



Probably the excluded species are about an equal number ; for 

 example : — 



The following list comprehends the species which are sub- 

 spontaneous or but partially naturalized, viz. Dianthus plumarius, 

 Spergida saginoides. Geranium phceum, Barbarea pracox, Hes- 

 peris matronalis, Lunaria biennis, Viola rothomagensis, Astragalus 



N. S. VOL. VI. 4g 



