104 xcvii. GENTIANACE2B. (C. B. Clarke.) [Canscora. 



tt Calyx keeled not winged, cyme-branches distinctly winged. 



4. C. sessiliflora, Roem. 8f Sch. Syst. iii. Mant. 230; leaves ovate, 

 flowers in the forks of the cyme sessile. Watt. Cat. 4367 ; Griseb. Gentian. 

 153, and in DC. Prodr. xiv. 64; Clarke in Journ. Linn. Soc. xiv. 430. Gen- 

 tiana heteroclita, Linn. Mant. 560. Exacum heteroclitum, Willd. Sp. PL 

 i. 639. Pladera sessiliflora, Roxb. Fl. Ind. ed. Carey $ Wall. i. 416. Centaurium 

 malabaricum, Borkh. in Roem. Arch. i. 27. 



5. DECCAN PENINSULA ; Eottler, Wight, &c. CEYLON, Batticaloa district, not 

 common, Thwaites. 



Stem 4-9 in-., broadly 4-winged upwards. Leaves ^ in., sessile, obtuse or sub- 

 acute. Cyme with ascending branches ; bracts ^-\ in., narrow ; lateral flowers 

 Tisually bracteate, sometimes pedicelled. Calyx \ in. Corolla-tube % ; lobes ^ in., 

 broadly obovate, rose-coloured. Flowers and capsules nearly as of C. diffusa, but 

 slightly larger. 



ttt Calyx distinctly winged. 



5. C. decussata, Roem. 8f Sch. iii. Mant. 229 ; leaves oblong-lanceolate, 

 cyme rigidly erect branches 4-winged, calyx-wings narrowly lanceolate, flowers 

 white. Wall. Cat. 4364; Griseb. Gentian. 153, and in DC. Prodr. ix. 

 430. Pladera decussata, Roxb. FL Ind. ed. -Carey $ Wall. i. 418 ; Bot. Mag. 

 t. 3066, 



Throughout INDIA, ascending to 4000 ft. ; from the Himalaya to Burma ; abun- 

 dant in Bengal Plain. CEYLON, not uncommon. DISTEIB. Madagascar, Bourbon, 

 Trop. Africa. 



Stem 4-20 in., 4-winged. Leaves 1^ by f in., sessile, 3-nerved. Cyme lax; 

 flowers in the forks pedicelled. Calyx ^-^ in. Corolla-tube as long as the calyx ; 

 lobes ^ in., obovate, obtuse. Stamens 1 perfect ; 3 barren, variously reduced, sub- 

 sessile or with filaments. Capsule and seeds considerably larger than in C. diffusa. 

 Exacum alatum, Roth, is reduced here by Grisebach, and there are specimens of 

 Rottler and Heyne which do belong; but Roth's description "calyx with broad 

 scarious wings, corolla rose " refers entirely to Canscora perfoliata, Lamk. 



6. C. concanensis, Clarke; leaves ovate, cymes slender branches 

 not winged, calyx-wings elliptic nerved scarious in fruit. 



The CONCAN, Law. 



A slender annual, 3-5 in. ; stem decumbent then erect, obscurely quadrangular. 

 Leaves f by in., subacute, sessile, 3-nerved. Cymes weak, at first dichotomous, 

 branches upwards subuni lateral, flowers all pedicelled ; pedicels $ in., slender ; 

 bracts ^- in., linear. Calyx ^ in. ; wings in., broad in fruit. Corolla-tube as 

 long as the calyx; lobes in., obovate, obtuse, seem to have been rose. Nearest 

 to C. macrocalyx, Miq. Fl. Ind. Bat. ii. 558, which is a rigid erect plant with winged 

 stem and cyme-branches. 



** Cymes terminal ; bracts at its bifurcations (or some of them) perfoliate. 



7. C. perfoliata, Lamk. Diet. i. 601, not of Griseb.; leaves elliptic 

 acute, calyx large wings elliptic nervose. C. alata, Wall. Cat. 4363 A ; Griseb. 

 Gentian. 154, and in DC. Prodr. ix. 65 ; Dalz. $ Gibs. Bomb. Fl. 158 ; Clarke 

 in Journ. Linn. Soc. xiv. 431. C. grandiflora, Wight Ic. t. 1326. C. macro- 

 calyx, Miq. in PL Hohenacker, n. 810 (not Fl. Ind. Bat. ii. 558). Pladera 

 perfoliata, Roxb. FL Ind. ed. Carey fy Wall. i. 418. Exacum alatum, Roth Nov. 



i. S5.Rheede Hart. Mai. x. 103, t, 52. 



The DECCAN PENINSULA ; from Bombay to Travancore ; Rottler, &c. 

 Stem 6-18 in., 4-winged. Leaves 1 by -f in., sessile, 3-nerved. Upper bracts 

 in. diam., suborbicular, 2-mucronate ; pedicels very short. Calyx \-\ by 33- in. 



