345 



( 



their journeys, whence it has become well known to the 

 Canadian hunters, and to the officers of the Hudson's Bay 

 Company. On these roots being shown to Mr. Douglas, lie 

 immediately recognised them as belonging to a plant which 

 he had gathered on the banks of some of the tributary streams 

 of the Columbia; and which he considered to be the Lewisia 

 of Pux-sh. His specimens, brought home in the herbarium, 

 having no flower, and showing signs of life, M^ere planted in 

 the garden of the Horticultural Society; but, like those at 



Philadelphia, they vegetated for a short time, and then 

 perished. 



Upon searching carefully among the dried roots col- 

 lected by Mr. Drumraond, many were found to have the 

 leaves in a tolerably perfect state, and not a few their scapes 

 and unexpanded Jlowers I but much injured in the process of 

 drying, and by having been packed in bags. Some of the 

 best of them were partially recovered by immersion in hot 

 water; and from these the following description and the sub- 



joined figure have been made. 



lewisia rediviva ? /3. radice alba. (Tab. LXX.) 



Radix perennis, subfusiformis, descendens, alba, fragilis, 

 ramosa. Folia plurima, omnino radicalia, stellatim pa- 

 tentia, duas uncias longa, linearia, carnosa, glabra, sub- 

 teretia, superne sulcata, apice valde obtusa, intus fasci- 

 culo fibrillarum tenui percussa. Scapi plurimi ex eadem 

 radice, bi-triunciales, erecti, teretes, glaberrimi, uniflori, 

 sub florera articulati, involucrati; bracteis vel foliolis 

 subulatis, membranaceis. Flos inapertus : Cali/x e foliolis 

 % arete convolutis, submembranaceis. Corolla polypetala. 

 Petala 9-12, foliolis calycinis subsimilia sed tenuiora, 

 interiora sensim minora. Stamina 12-16, erecta, hypo- 

 gyna. Filamenta brevia. Antker^B lineares, flavae, apice 

 hreviter apiculatae. Pollen triangulari-subrotundum, e 

 gt-anulis tribus constans. Pistillum: C 

 obscure trilobum. Stylus sexpartitus, laciniis longis, 

 erectis, filiformibus. Stigmata obtusa. Ovula plurima, 

 receptaculo central! libero inserta. 



ermen 



