GENTIANE.E. I. SWERIIA. 



175 



36 ROSLIXIA. All as in Chirbnia, but differs in the fruit being 

 a succulent berry. 



37 ERYTHBJE'A. Calyx 5-cleft. Corolla funnel-shaped : with 

 a short 4-5-parted limb. Anthers spiral in the old state. Style 

 erect. Stigmas 2, roundish. 



38 SABBA'TIA. Calyx 5-parted. Corolla with an urceolate 

 tube, and a 5-12-parted limb. Stigmas 2, spiral. Anthers at 

 length re volute. 



SUB-TRIBE IV. LISIA'KTHE*. Capsule i-celled, in conse- 

 quence of the margins of the takes being bent into the central 

 column ; margins of takes placentiferout. Anthers changed in 

 the old state. 



39 LISIA'XTHUS. Calyx campanulate, 5-cleft. Corolla fun- 

 nel-shaped ; tube ventricose on one side ; limb equal, 5-cleft. 

 Anthers sagittate, incumbent, revolute in the old state. Style 

 elongated ; stigma bilamellate. Seeds small, angular. 



40 IRLBA'CHIA. Calyx campanulate, 5-cleft. Corolla funnel- 

 shaped, equal, 5-cleft. Anthers revolute when old. Lobes of 

 stigma cylindrical. Seeds angular, small. 



41 SYMBOLA'STHUS. Calyx 5-parted, pentagonal. Corolla 

 salver-shaped, 5-parted ; tube cylindrical ; segments fringed. 

 Stamens having a small crenulated, ring-formed membrane at 

 the base of the filaments. Anthers sagittate, but at length con- 

 volute. Lobes of stigma linear-oblong, flat. 



4J EC'STOMA. Calyx 5-parted ; having the segments more 

 or less winged on the back. Corolla funnel-shaped, 5-cleft ; 

 tube contracted a little at apex. Stamens 5 ; filaments com- 

 pressed ; anthers rather sagittate. Stigma deeply 2-lobed. 

 Seeds scobiform. 



TRIBE II. 



EXACIE'.. Capsule 2-celled ; margins of takes inflexed, in- 

 serted in the central placentas, which are at length free and bear 

 the seeds. 



43 SEB.E V A. Calyx 4-5-parted ; segments keeled or winged. 

 Corol'a 4-5-cleft. Stamens exserted ; anthers dehiscing length- 

 wise, when old recurved and callous at the apex. Stigmas 2. 



44 E'XACCM. Calyx campanulate, 4-cleft ; segments winged 

 on the back. Corolla subrotate, 4-cleft. Stamens 4, declinate ; 

 filaments terete ; anthers oblong, sub-tetragonal, emarginate at 

 the base, erect, dehiscing by a chink at apex. Style declinate. 

 Stigma clavate, undivided. 



45 MICROCA'LE. Calyx deeply 4-cleft. Corolla salver- 

 shaped, with a swelling tube and a 4-cleft limb. Stamens 4, 

 filiform, erect : anthers oblong. Style declinate ; stigma capi- 

 tate, undivided. Capsule imperfectly 2-celled. 



TRIBE III. 



DESFOMAIXIE\E. Berry \-celled, many-seeded; with 4-5 pa- 

 rietal septiform placentas, hence the berry appears many-celled; 

 placentas with rejlexed seminiferous sides. Seeds disposed with- 

 out order, erect, oborate, angular, with an umbilicus at the base, 

 and a dilated chalaza at top. Albumen fleshy, white. Ever- 

 green shrubs, with spiny-toothed leaves, and solitary, terminal, 

 pedunculate flowers. Peduncles bibracteate. 



46 DESFONTA'IXIA. Calyx 4-5-parted; with nearly equal 



12 



obtuse segments. Corolla tubular, cartilaginous ; with a 4-5- 

 lobed limb; lobes roundish, retuse. Stamens 4-5. Anthers 

 erect, innate, 2-celled, inserted each in a large, fleshy connective ; 

 cells dehiscing lengthwise. 



\ A genus hardly known. 



47 PAJXA'DIA. Corolla funnel-shaped ; limb of 8 segments ; 

 tube furnished with 8 plicae. Capsules 2, club-shaped. Stigmas 

 2, spreading. Seeds small, roundish, fixed to spongy receptacles. 



TRIBE I. 



GENTIANIE\E. Capsule 1-2-ceDed, 2-valved; margins of valves 

 placentiferous. Seeds usually disposed in two rows, on each side 

 of the valves. 



SUB-TRIBE I. GEUTIA'SE^-YE'R^. (This tribe is supposed to 

 contain the legitimate species of the genus.) Capsule 1 -celled, 

 2-valved. Margins of valves bearing the seeds. Anthers re- 

 maining unchanged in the old state. 



1. SWE'RTIA (so named by Linnaeus after Iman Sweert, 

 a cultivator of bulbs and flowers, in Holland ; author of Flori- 

 legium, Francof. 1612. fol.). Lin. gen. no. 321. Schreb. 449. 

 Juss. 142. Gaertn. fruct. 2. p. 160. t. 114. Lam. ill. t. 109. 



LIN. STST. Tetra-Pentandria, Monogynia. Calyx deeply 

 4-5-parted. Corolla rotate, 4-5-parted ; segments furnished 

 with 2 callous scrobicles at the base of each, which are fringed 

 on the edges. Stamens 4-5 ; filaments subulate, flattened, gla- 

 brous, dilated at the base; anthers incumbent, dehiscing length- 

 wise, loosened at the base. Style very short. Stigmas 2, sub- 

 orbiculate, flattened, minutely papillose above, with revolute 

 edges. Capsule 1-celled, 2-valved. Seeds compressed, mar- 

 ginate, fixed to the edges of the valves. Usually glabrous 

 herbs. Leaves opposite, rarely alternate, quite entire, nerved. 

 Flowers terminal, pedunculate, almost solitary, or racemosely 

 panicled, blue or yellowish. 



1. Pentamera (from veyre, pente, five, and fiepic, meris, a 

 part ; parts of the flowers). Calyx 5-parted. Corolla 5-clefl. 

 Stamens 5. 



1 S. PERE'NNIS (Lin. spec. 328.) glabrous : stems erect, and 

 are, as well as peduncles, tetragonal ; leaves almost all radical, 

 ovate or elliptic, obsoletely nerved ; racemes panicled, terminal ; 

 segments of corolla acute. 1^. H. Native of Germany, 

 Austria, France, Caucasus, and Siberia ; and of North Wales. 

 Jacq. austr. 243. Smith, engl. hot. t. 1441. Pall. ros. 2. p. 

 98. Gentiana paniculata, Lam. fl. fr. 2. no. 333. Gentiana 

 palustris. All. ped. no. 367. Hall. helv. no. 636. Barrel, icon, 

 t. 91. Morr. his. sect. 12. t. 5. f. 11. Calycine segments su- 

 bulate. Corolla of a greyish purple colour ; segments elliptic, 

 acute, dotted with black, having the edges of pores bristly. 

 Margins of valves bearing a double row of seeds. Plant very 

 bitter. Cauline leaves opposite. Bracteas elliptic, oblong. 



Perennial Felwort. PI. July, Aug. PL 1 foot. 



2. S. OBTU'SA (Led. act. petrop. 5. p. 526. fl. alt. 1. p. 290. 

 Rchb. pi. crit. 5. p. 11. t. 419. f. 605.) glabrous; stems erect, 

 and are, as well as the peduncles, tetragonal ; leaves scattered, 

 all oblong, 5-nerved, somewhat coriaceous, obtuse ; flowers ra- 

 cemose ; segments of corolla obtuse, dotless, and erose at the 

 apex ; cilia of nectary very long and loose ; filaments pilose 

 at the base. Native of Siberia, in sub-alpine humid places. 

 S. perennis Pall. itin. 2. p. 568. S. perennis, /3 alternifolia, 

 Schlecht. in Linnaea. 2. p. 189-190. Stem bluish-green, tetra- 

 gonal. Lower cauline leaves petiolate, oblong. Bracteas, and 

 pedicels bluish. Corolla violaceous. 



