Gentiana. GENTIANACE^. HQ 



^.i** „^n= e0US " fimbr , iate Cr °^ n ' &e -' , as '? , the P recedin g subdivision ; but glands on the base of 

 fube manifest: calyx-lobes very small and short on the truncate spathaceous 



G. Wislizeni, Engelm. A foot or less high, with the habit and many-flowered thyrsoid- 

 paniculate inflorescence of G. quinqueflora, but smaller in all its parts : leaves from lanceo- 

 late to ovate (an inch or less long), with obtuse or subcordate base : calyx barely half the 

 length of the tube of the corolla ; its scarious tube (1J lines long) split down one side, in 

 age sometimes dejected, much longer than the 5 unequal linear herbaceous teeth : corolla 

 nearly saberform, pale purplish, 4 or 5 lines long ; its lobes oblong-ovate, copiously fringed 



above the base: capsule sessile: seeds globose. — Trans. Acad. St. Louis, ii. 215 t. 7. 



Sierra Blanca, S. Arizona, Rothrock, a broad leaved form, the glands less evident. (Ad- 

 jacent Mex., Wislizenus. ) 



++++++ No crown to the corolla; but its lobes tipped with a setiform point or sharp acumination 

 and the glands at bottom of the tube manifest. — § Arctophila, Griseb. 



= Dwarf species of high northern or alpine regions : cauline leaves only 2 to 4 rather distant pairs : 

 calyx 4-5-parted. 



G. aurea,-L. Leaves ovate, 5-7-nerved ; the margins and those of the spatulate-lanceolate 

 calyx-lobes smooth : corolla yellow, violet, or commonly white, 4 lines long, little surpass- 

 ing the calyx ; its lobes almost as long as the campanulate tube. — Fl. Dan. t. 344 ; Herder, 

 1. c. 155. G. involucrata, Rottb. in Act. Hafn. x. 344, t. 1, fig. 2. G. Aleutica, Cham. & 

 Schlecht. in Linn. i. 175, fide Herder. G. Unalaschkensis, Cham, in Bunge, 1. c. 240, t. 9, 

 fig. 2. — Unalaschka, &c. Also Sitka, according to Herder. (High northern Siberia to 

 Lapland, Iceland, and Greenland.) 



G. propinqua, Richards. Stem slender, 2 to 7 inches high, mostly branched from the 

 base : leaves from oblong to lanceolate and the lowest spatulate, obscurely 3-nerved, the 

 edges and those of the calyx smooth : flowers chiefly 4-merous and rather slender-pedi- 

 celled : lobes of the calyx unequal ; two of them ovate or oblong, the others linear-lanceo- 

 late, the larger rather shorter than the tube of the corolla : the latter bluish, narrow,-4 to 

 9 lines long, its lobes ovate or in age lanceolate, sometimes erose-denticulate. — App. 

 Frankl. Journ. 734 ; Griseb. 1. c. ; Hook. Fl. t. 150 ; Herder, 1. c. G. Rurikiana, Cham. & 

 Schlecht. in Linn. i. 176. G. setiflora, Bunge, 1. c. t. 9, fig. 4.— Labrador to Bear Lake, the 

 northern Rocky Mountains, Kotzebue Sound, &c. (Adjacent Asia.) 



Var. densiflora, Griseb, 1. c, in alpine swamps of the Rocky Mountains (Drum- 

 mond), a more condensed and leafy plant, occurring with the ordinary form, is said to differ 

 from the preceding species only in the inequality of the calyx-lobes. 

 G. arctophila, Griseb. Stem an inch to a span high : leaves ovate-oblong or the low- 

 est obovate ; the edges and especially those of the calyx-lobes scabrous : corolla 7 to 10 

 lines long ; the round-ovate lobes more acuminate-cuspidate : otherwise very like large- 

 flowered G. propinqua (to which Herder refers it). — Gent. 251, & in Hook. Fl. ii. 61, t. 149, 

 with a var. densiflora, having cordate-ovate leaves, and two of the calyx-lobes unusually 

 large. — Arctic sea-coast, Richardson. The variety in the alpine region of the northern 

 Koeky Mountains, Drummond. 



== = Taller and leafy : calyx 5-cleft : capsule slender-stipitate. 

 G. quinqueflora, Lam. Aiaot_oi two high ; the larger plants branching : leaves ovate- 

 lanceolate, with subcordate partly clasping base, 3-7-jierved, the upper acute or cuspi- 

 date-acuminate : inflorescence thyrsoid-paniculate ; the cba§teis_.3-5-nowered: calyx one 

 fifth or fourth the length of the narrow funnelform bright blue corolla ; its lobes linear- 

 subulate : corolla half to three fourths inch long ; its lobes ovate-triangular, short. — Diet, 

 ii. 643 ; Froel. Gent. 51 ; Griseb. 1. c. G. quinquefolia, L., doubtless meant for quinqueflora. 

 G. amarelloides, Pursh, Fl. i. 186. — Moist hills, Canada, Maine to Michigan, and along the 

 Alleghanies to Florida. 



Var. OOCidentalis, Gray. Sometimes 2 or 3 feet high and paniculately much 

 branched : irrflorescepce more open : calyx-lobes more f oliaceous, linear or lanceolate, un- 

 equal, reaching to the middle of the broader funnelform corolla. — Man. ed. 1, 359, ed. 5, 387. 

 G. quinqueflora, Hook. Bot. Mag. t. 3490, mainly. — Ohio to Minnesota and south to Ten- 

 nessee and Louisiana. 



Var. parviflora, Raf ., collected in Virginia, Kentucky, &c. (Griseb. in DC. 1. c. 100), 

 is a depauperate and small-flowered state of the preceding variety, and is G. amarelloides, 

 Michx. Fl. i. 175. 



