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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Pelargonium tomentosum. 

 Phlomis fruticosa. 

 Phygelius capensis. 

 Pimenta officinalis. 

 P. acris. 



Piptanthus nepalensis. 

 Pogostemon Patchonly. 

 Prostranthera lasianthos. 

 Psorala glandulosa. 

 Ehopala corcavadensis. 

 Rosa rubiginosa. 

 Rosmarinus officinalis. 

 Ruta graveolens. 

 Salvia officinalis. 



Salvia rutilans. 

 Santolina incana. 

 Skimmia laureola. 

 Solanum crispum. 

 Tanacetum vulgare. 

 Thuja Lobbi. 

 T. L. atrovirens. 

 T. vervameana. 

 Thymus citriodora aurea. 

 T. c. argentea elegantissima. 

 T, vulgaris. 



Umbellularia californica. 

 Valeriana officinalis. 



OBSERVATIONS ON SOME PLANTS EXHIBITED. 

 By the Rev. Prof. G. Henslow, M.A., V.M.H., &c. 

 [May 10, 1898.] 



Alpine Plants. — Mr. Henslow took as his subject for 

 remarks some Alpine plants exhibited by Mr. Geo. Paul and Mr. 

 Ware. He first called attention to the general characters of 

 high Alpine and Arctic plants, in that they are dwarf in habit, 

 mostly perennials, often with brilliantly coloured flowers, and 

 sometimes characterised by a silky or woolly epidermis. These 

 features are the result of the climatic conditions ; as the same 

 plants when grown in lowlands were often annuals, taller, and 

 with less bright colours. The proportion of annuals continually 

 decreases as the latitude or altitude increases, so that in Spitz- 

 bergen there are none. The dwarf habit has suggested the specific 

 names of muscoides, i.e., " like moss," nana, i.e., " dwarf," 

 &c. Certain families are especially well represented, as 

 Primulacea? and Gentianeae, the former of which includes the 

 original wild P. auricula, the basis of the hybrids forming the 

 florist's flowers, of which a dried specimen was exhibited ; our 

 own P. farinosa and P. scotica, the former closely resembling its 

 variety P. /. Magellanica, a specimen of which, brought by Mr. 

 Darwin, showed the wide distribution of this species, as the only 

 conceivable means of transit from the northern hemisphere, was 



