Tas. 7637, 
GENTIANA Borszrt. 
Native of the Pyrenees and Western Alps. 
Nat. Ord. GentTIANACEHZ.—Tribe SwertTiex. 
Genns Gentian, Linn. ; (Benth. & Hook. f. Gen. Plant. vol. ii. p. 815.) 
Gentrana (Coelanthe) Purseri; elata, robusta, glaberrima, foliis infimis 
maximis breviter petiolatis elliptico-oblongis 7-nerviis marginibus levibus, 
caulinis sessilibusacutis acuminatisve, floribusinavxillis foliorum superioram 
cymoso-fasciculatis 1}-pollicaribus breviter pedicellatis, calycis mem- 
branacei tubo corolla breviore sacciforme ad basin fisso, ore truncato 
5-denticulato, corolla clavato-campanulata pallide anrea 5-7-loba, lobis 
tubo basi intus eglanduloso ter brevioribus late ovatis obtusis, plicarum 
lobulis brevibus rotundatis, filamentis gracilibus, antheris lineari- 
oblongis primum coherentibus, loculis extrorsum dehiscentibus, ovario 
cylindraceo basi dilatato 5-7-lobo apice in stylum robustum attenuato, 
stigmatibus brevibus, capsula stipitata anguste ellipsoidea rostrata. 
G. Burseri, Lapeyr. Hist. Abr. Pl. Pyr. p. 132. Griseb. Gen. et Sp. Gent. p. 298, 
et in DOC. Prodr. vol. ix. p. 116. Duby, Bot. Gall. p. 326. Loisel. Fl. 
Gall. vol. i. p. 178. Gren. & Godr. Fl. Franc. vol. ii. p. 89. Benth. Cat. 
Pl. Pyren., &c., p. 81. 
G. punctata, Vill. Hist. Pl. Dawph. vol. ii. p. 512 (non Linn.). 
G: biloba, DC. Fl. Fr. vol. iii. p. 653 ; Ic. Pl. Gall. Rar. t. 15. 
G. macrophylla, Bertol. Fl. Ital. vol. iii. p. 79 (non Pall.). 
Coslanthe Burseri, G. Don, Gen. Syst. Gard, vol. iv. p. 185. 
This noble Gentian is a very near ally of G. punctata, 
a native of mountain regions, from Provence to the 
Carpathians, thence extending to the Balkans of Roumelia. 
It differs from that plant chiefly in the larger leaves, with 
more (seven) nerves. Forms occur of both with the corolla 
speckled with black dots. The headquarters of G. Burseri 
are the Pyrenees, where, according to Bentham, it is “ assez 
commune.” It also occurs in the Alps of Piedmont, Pro- 
vence, and Dauphine. Bentham recognized two varieties 
of it in the Pyrenees, the type, with punctate corolla, and 
B, hybrida, with impunctate corolla, which, though a much 
rarer plant, is Lapeyrouse’s type. This var. 8 he found 
near Mont Louis, where it grew intermixed with the type 
and G. lutea, Linn., and as he there found every 
intermediate between these two species, he regarded var. 
8B as a hybrid, and so designated it. J may remind the 
reader that G. lutea is a very widely distributed plant 
Fesrvary Ist, 1899. 
