190 xlix. GENTIANEJE. [ Gentiana . 
Stems short, robust, very leafy, many-flowered. Calyx-lobes linear- 
oblong, obtuse 2. G. concinna. 
Stems robust, many-flowered. Stem-leaves few. Flowers corym- 
bose. Calyx-lobes oblong 3. G.pleurogynoides. 
Root perennial. 
Stems ascending, few-leaved, 1- or many-flowered. Calyx-lobes 
oblong or ovate 4. G. saxosa. 
Stems prostrate, very leafy. Calyx-lobes spathulate, as long as the 
corolla 5. G. cerina. 
1. G. montana, Foist.; — FI. N. Z. i. 178. Root slender, filiform, 
annual. Steins generally many from the root, very slender, 4-18 in. high, 
usually ascending, 1- or few-flowered, sparingly leafy. Leaves : radical 
spathulate, with long or short petioles, \~2 in. long, rather membranous; 
cauline sessile, ovate or oblong, obtuse. Flowers on slender pedicels, •§■— | in. 
long. Calyx deeply divided ; lobes subulate-lanceolate, acuminate. Corolla- 
lobes oblong, subacute. — G. Grisebachii , Hook. f. in Hook. Ic. PI. 636. 
Northern Island: mountainous districts; Tongariro, m&will. Common throughout 
the Middle Island, Forster, ascending to 3000 ft. Also common in Tasmania and the 
alps of Victoria, in both which countries it attains a larger size, and more corymbose habit. 
I cannot distinguish seedling states of G. saxosa and pleurogynoides from this. 
2. G. concinna, Hook. f. ; FI. Antarct. i. 53. t. 35. Root slender, 
annual. Stems numerous from the root, erect or ascending, 2-12 in. long, 
rather stout, leafy. Leaves all linear-oblong or spathulate-oblong, 1^ in. 
long, coriaceous, obtuse, often recurved. Flowers about ^ in. long. Calyx 
deeply divided ; lobes often as long as corolla, linear-oblong, obtuse. Co- 
rolla lobes narrow, obovate-oblong, obtuse. 
Lord Auckland’s group and Campbell’s Island : abundant on the hills, .T.D.H. The 
stouter leafy habit and form of the calyx-lobes best distinguish this from G. montana. It is 
extremely variable ; shoots have often leaves 3 in. long, linear-oblong, and 3-nerved. 
3. G. pleurogynoides, Griseb. — G. saxosa, y, FI. N. Z. i. 178. 
Root slender or stout, usually annual. Stems solitary or numerous from the 
root, erect, rarely ascending, always stout, 4-20 in. high, sparingly leafy. 
Leaves : radical ^-3 in. long, very coriaceous, rosulate, petioled, spathulate ; 
cauline in distant pairs, oblong-ovate or ovate-cordate, short or long. Flowers 
yellowish, very handsome, usually large, ^—1 in. long, in terminal umbels or 
corymbs. Calyx not deeply divided ; lobes oblong or ovate, subacute 
or acute, very variable in length. Corolla-lobes usually much larger and 
broader than in the two preceding. 
Northern Island: summit of Ruahine range, Colenso. Middle Island : abundant on 
all the mountains, ascending to 5000 ft., Forster, etc. The usually simple, stout, erect, 
sparingly leafy stem, and corymbose large flowers are the best characters of this beautiful 
form. A common Tasmanian plant. 
4. G. saxosa, Forst. ;—Fl. N. Z. i. 178. Root stout or slender, pe- 
rennial. Stems usually numerous, erect or ascending, stout or slender, 
2-6 in. high, sparingly leafy, 1- rarely many-flowered. Leaves : radical 
numerous, often rosulate, spathulate or oblong, £-3 in. long, coriaceous ; cauline 
oblong-ovate or ovate-cordate. Flowers usually large, i-f in. long. Calyx- 
lobes excessively variable in depth and form. Corolla-lobes broadly obovate- 
oblong, obtuse. 
