118 GENTIANACEiE. Gentiana. 



tube : fimbriate crown conspicuous at the throat. — Act. Hafn. 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.) 



-t— -I— 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 usualty conspicuous and rather 

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

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

 scabrous. 



G. auriculata, 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, 9 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 : setse 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. Engelrnann, Watson. New Mexico in the Sandia Mountains, Bigelow. 



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- 

 ulate-f unnelform white corolla : the latter not glandular at base ; its lobes ovate, one-third 

 the length of the tube, each with a crown of about 15 long and distinct setse: capsule 

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

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



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

 or the lowest obovate-spatulate : 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. I.e. ; Herder in Radde, iv. 145. G. pratensis, Frcel. 1. c. (Eu.,Asia.) 



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

 times very few setas. — Engelm". 1. u. ; Herder, I. c. G. acuta, Michx. Fl. i. 177 ; Griseb. 

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

 Richards. App. Frankl. Journ. ; Watson, Bot. King, 1. c. G. plebeja, 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. acuta, var. stricta, 

 Griseb. in Hook. Fl. & DC. 1. c. G. arctophila, var. densiflora, 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. tenuis, Griseb. Gent. & in Hook. Fl. 1. c. 63, t. 151. — Mackenzie 

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

 conspicuous, or wanting. 



