104 xcvil. GENTiANACBiE. (0. B. Clarke.) [Ganscora. 



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



4. C. sessiliflora, Moem. Sr ScJi. Syst. iii. Mant. 230; leaves ovate, 

 flowers in the forks of the cyme sessile. Wall. Cat. 4367 ; Cfriseb. Gentian. 

 163, and in DC. Prodr. xiv. 64; Clarke in Jmi/m. lAnn. Soc. xiv. 430. Gen- 

 tiana heteroclita, JJinn. Mant. 560. Exacum heteroolitum, Willd. Sp. PI. 

 i. 639. Pladera sessiliflora, Roxb. Ft. Ind. ed. Carey Sr Wall. i. 416. Oentaurium 

 malabaricum, JBorkh. in Poem. Arch. i. 27. 



5. Decoak Peninsula; Bottler, 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 ^^ m., narrow; lateral flowers 

 usually bracteate, sometimes pedicelled. Calffx J in. Corolla-tvie j- ; lobes \ in., 

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

 slightly larger. 



ttt Cedyx distinctly winged. 



5. C. decussata, Poem. Sf Sch. iii. Mant. 229 ; leaves oblong-lanceolate, 

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

 white. Wall. Cat. 4364; Griseb. Gentian. 163, and in DC. P-odr. is. 

 430. Pladera decussata, Poxb. Ft. 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 | in., sessile, 3-nerved. Cyme lax; 

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

 lobes J 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, Eoth, is reduced here by Grisebach, and there are specimens of 

 Eottler and Heyne which do belong ; but Eoth's descijiption " calyx with broad 

 Scarious wings, corolla rose " refers entirely to Canscora perfoUata, 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, 3-6 in. ; stem decumbent then erect, obscurely quadrangular. 

 Leaves | by ^ in., subacute, sessile, S-nerved. Cymes weak, at first dichototaous, 

 branches upwards subunilateral, flowers all pedicelled ; pedicels ^\ in., slender ; 

 bracts i-i in., linear. Calyx A in. ; wings J in., broad in fruit. Corolla-tube as 

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

 to O. maarocalyx, Miq. Fl. Ind. Bat. ii. S58, 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. 0. alata. Wall. Cat. 4363 A ; Griseb. 

 Gentian. 164, and in BC. Prodr. ix. 65 ; Dah. 8^ Gibs. Bomb. Fl. 158 ; aarke 

 in Journ. lAnn. Soc. xiv. 431. C. grandiflora, Wight Ic. t. 1326. 0. macro- 

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

 perfoliata, Poxb. Fl. Ind. ed. Carey 8r Wall. i. 418. Exacum alatum, Poth N<m. 

 ^. 85.— Pheede Sort. Mai. x. 103, t. 62. 



The Deccan Peninsula ; from Bombay to Travancore ; Eottler, &c. 

 Stem 6-18 in., 4-winged. Leaves 1 by 4-| in., sessile, S-nerved. Upper brads 

 ^ in. diam., suborbicular, 2-mucronate ; pedicels very short. Calyx ^-^ by i-4- in. 



