62 



GENTIANEiE. [Gentiana. 



Hab. Arctic Sea-Coast. Dr, Richardson, /3. Rocky Mountains. Mr, Drummond. — This affords an- 

 other instance of the occurrence of the same species at the level of the sea in the north, as well as at a 

 certain height in lower latitudes. It approaches nearly to G. propinqua. Rich., but it seems to differ 

 constantly, since its exterior habit, and the manner of its ramification, is indeed anything but analogous. 

 In Chamisso's specimens of the latter species, the lobes of the corolla are lanceolate, and not super- 

 incumbent, at their base ; but, among that great series of specimens which have been collected on Capt, 

 Franklin's expedition, are to be found flowers wholly similar to those of G. arctophila, differing, indeed, 

 only in having their corolla always much slenderer and narrower at the base of its tube, as well as some- 

 what serrated at its lobes. 



Tab. CXLIX. — A. var, «. B.B. var. /3. — Fig. 1, Flower of /3 ; Jig. 2, The same laid open: — magnified. 



16. G, propinqua (Rich.); caule gracili basi flagellifero superne subsimplici, foliis imis 

 spathulatis, superioribus oblongo-lanceolatis lanceolatisque acutis, sepalis margine laevibus 

 basi junctis valde ineequalibus, binis ovatis acutis tubum corollse Eequantibus, binis lanceo- 

 lato-linearibus brevioribus^ corollse 4-(5?)-fidse caerulese lobis ovato-lanceolatis acuminatis- 

 simis setula terminatis (margine hinc setulosis) tubo obconico fere duplo brevioribus. (Tab. 

 CL.) — Richardson in Narr, of a Journey by FrankL p, 734. — G. Rurikiana. Cham, et 

 Schlecht in LinncPM^ 1. /?. 176. — G. setiflora. Bg. L c, p, 242, t, 9.f. 4. — /?. densijlora; 

 floribus termiiialibus aggregatis a foliis floralibus involucratis, foliis caulinis ovato-oblongis 

 obtusis, foliis radicalibus spathulatis rosulatis, flagellis erectiusculis foliosis apice densifloris 

 caule dimidio minoribus, caule humiliori* 



Hab. Alpine swamps in the Rocky Mountains {Mr, Drummond)y together with the variety. Cumber- 

 land House to Bear Lake, and Bear Lake River. Dr. Richardson. Escholtz's Bay. Chamisso. — This 

 species is chiefly characterised by a great many small branches or flagella, which rise from the axillae 

 of the radical leaves, and from the inferior ones of the stem. Tliey are very slender, one or two inches 

 long, commonly with one pair of leaves and one terminal flower, which is considerably smaller than the 

 flowers of the stem. There are specimens with twenty such branchlets. This species grows along with 

 G. acM^a, Mich., some forms of which are so strikingly like this plant, that one would easily think them 

 not specifically different, the more so as the beard of G, acuta sometimes almost totally disappears, and 

 the existence of glands between the filaments in the section Arctophila is also variable. The cuspidate 

 lobes of the corolla, however, afford a character which never fails. — The original specimens did not present 

 a 5-cleft corolla; but this is a point of no value at all in this group of Gentiance, and Chamisso's and 

 Richardson's plants are quite the same. In the drawing of Mr. Bunge, the shape of the leaves, and of the 

 lobes of the corolla, is not well given.— The variety /3. is in fact so similar to G. aleittica, Cham., that it is 

 impossible to distinguish them in any other way than by the calyx, the lobes of which are regular in the 

 latter, and united in a tube half as long as themselves. Also, the leaves of the stem are still larger and 

 more stem-clasping. It seems that the constancy of these characters is still to be proved by investigations 

 on the spot. Transition forms between that variety and the common appearance of G. propinqua. Rich., 

 are frequent. 



Tab. CL. — Fig. I, Flower;^^. 2, The same laid open: — magnified. 



17. G. quinqaeflora (Lam.); caule vegeto a basi ramose, ramis oppositis, foliis imis obo- 

 vato-linearibus paucis, ceteris cordato-ovatis (acutissimis) 5-7 nerviis, calycis corolla qua- 

 druple brevioris lobis subulatis aequalibus margine scabriusculis tubum eequantibus, corollse 

 5 fidse cserule^ lobis triangularibus acutissimis setula terminatis (margine l^vibus) tubo 



