118 GENTIAN ACE^. Gentlana. 



tube : fimbriate crown conspicuous at the throat. Act. Haf n. x. 436, t. 2, fig. 6 ; Froel. 1. c. 

 96; Reichenb. Ic. Germ. t. 1045. G. glacialis, A. Thomas in Vill. Delph. ii. 532. G. 

 Koenigii, Gunner, Fl. Norv. 102. G. dichotoma, Pall. Fl. Ross. ii. 116. G. borealis, Bunge, 

 Gent. 1. c. 251, t. 10, fig. 2. High alpine region of the Rocky Mountains in Colorado 

 (Parry), Utah (L. Ward), and Idaho, Nuttall. Unalaschka and Kotzebue Sound, &c. 

 (Kamtschatka to Greenland.) 



H -t Peduncles short or none, terminal and lateral on a comparatively elongated stem, the angles 

 of which are acute or wing-margined. 



H- Setaceous-fimbriate crown on the base of the corolla-lobes usually conspicuous and rather 

 copious, sometimes reduced to a few setae, or rarely evanescent : glands at the base of corolla 

 obscure or wanting: margins of the leaves and of thu conspicuous foliaceous calyx-lobes minutely 

 scabrous. 



G. aiiriculata, Pall. A span or two high : leaves oblong-lanceolate or the upper ovate : 

 calyx-tube turbinate, longer than the 5 (or rarely 4) lobes ; these nearly equal and similar, 

 cordate-ovate, or the inner merely ovate : corolla violet-blue, or 10 lines long ; its lobes 

 ovate. Fl. Ross. ii. 102, t. 92, fig. 1; Griseb. 1. c. Islands between N. E. Asia and Amer- 

 ica, and even on the N. W. American coast, according to Pallas ; but not since found. 

 (Kamtschatka, E. Siberia, &c.) 



G. heterosepala, Engelm. A span or two high, rather simple and racemosely few- 

 flowered : leaves ovate-lanceolate or oblong : calyx very unequally 5-parted ; two of the 

 lobes large and foliaceous, ovate, acute, equalling the tube of the pale blue corolla (4 to 6 

 lines long); the other 3 linear-subulate and shorter: seta? of the crown copious, united 

 below into a membrane on the base of each corolla-lobe: capsule sessile. Trans. Acad. 

 St. Louis, ii. 215, t. 8 ; Watson, Bot. King, 278. Utah, in Uinta and Wahsatch Mountains, 

 H. Enrjelmann, Watson. New Mexico in the Sandia Mountains, Bigclow. 



G. "Wrightii. Nearly 2 feet high : stem virgate, simple, with strict racemiform inflores- 

 cence: leaves thickish, ovate-oblong or elliptical (less than an inch long), erect, most of 

 the (about 12) pairs below the flowering portion nearly equalling the internodes, connate 

 at base: flowers rather numerous, 10 lines long: calyx very deeply 5-cleft ; its short tube 

 10-costate (the ribs answering to the sinuses stronger) ; the lobes somewhat unequal and 

 with strongly scabrous margins, all lanceolate, rather shorter than the tube of the campan- 

 ula te-funnelform white corolla: the latter not glandular at base ; its lobes ovate, one-third 

 the length of the tube, eacli with a crown of about 15 long and distinct seta?: capsule 

 short-stipitate. Accidentally named G. quinqueflora in Torr. Bot. Mex. Bound. 157. 

 S. E. Arizona, in springy ground near Santa Cruz, Wrirjht. 



G. Amarella, L. From 2 to 20 inches high : leaves from lanceolate to narrowly oblong, 

 or the lowest obovate-spatulatc : inflorescence disposed to be racemiform : calyx 5-cleft (or 

 rarely 4-cleft) below the middle ; the lobes lanceolate or linear, equal or one or two of them 

 longer, all shorter than the mostly blue corolla: the latter half inch or more long; its 

 lobes oblong, obtuse, or becoming acute: capsule sessile. Fl. Dan. t. 328; Reichenb. Ic. 

 Germ. 1. 1046 ; Griseb. 1. c. ; Herder in Radde, iv. 145. G. pratcnsis, Froel. 1. c. (Eu., Asia.) 



Var. acuta, Hook. f. Calyx almost 5-parted : crown usually of fewer and some- 

 times very few sets. Engclm. 1. c. ; Herder, 1. c. G. acnta, Miclix. Fl. i. 177; Griseb. 

 1. c. ; Engelm. 1. c. 214, t. 9, fig. 6 (var. nann, a depauperate high alpine form). G. Amarclla, 

 Richards. App. Frankl. Journ. ; Watson, Bot. King, 1. c. G. plcbeja, Cham, in Bunge, 

 Gent. 1. c. 250, t. 9, fig. 5. Labrador and Lower Canada to Alaska, and south along the 

 Rocky Mountains to New Mexico, in the Sierra Nevada of California, and thence far north- 

 ward. (N. Asia. &c. Mex.) 



Var. stricta, "Watson, 1. c. Stem (sometimes 2 to 4 feet high) and branches strict, 

 remotely leafy : leaves thickish, the cauline lanceolate-linear : flowers numerous, commonly 

 4-merous, smaller : calyx rather less deeply cleft : corolla 3 to barely 5 lines long, whitish, 

 little longer than the unequal calyx ; setae of the crown sometimes very few or even want- 

 ing ; glands at base of the tube not rarely evident : seeds smaller. G. acnta, var. stricta, 

 Griseb. in Hook. Fl. & DC. 1. c. G. arctophila, var. dens(flora, Torr. in Frem. Rep. 94, not 

 Griseb. Mountains of Nevada, Idaho, and Wyoming. (Mex.) 



Var. tenuis. Same as var. stricta, but calyx very deeply parted, according to figure 

 and description of G. tennis, Griseb. Gent. & in Hook. Fl. 1. c. 63, t. 151. Mackenzie 

 River and Bear Lake, Richardson. Not since found. Seta? of the crown 3 to each lobe and 

 conspicuous, or wanting. 



