96 XCVII. GENTIANACEX. (C. B. Clarke.) [ Exacum. 
W. Deccan PENINSULA ; from the Concan southwards. 
Stem 2-5 ft., subsimple below. Leaves 2-6 in., from oblong to subcordate-ovate. 
Cymes dense, forming a narrow interrupted panicle. Calyzx-lobes 3-1 in., narrowly 
(or not) winged. Corolla-lobes 1} in., ovate, acute. <Anthers j,-& in. wide at the 
base. Capsule 4 in., ovoid.—The finest species of the genus: in its straight buds and 
subsymmetric flowers it resembles &. tetragonum on a large scale. 
4. E. bicolor, Roxb. Catal. Pl. (1813), and Fi. Ind. ed. Carey § Wall. 
i. 413 ; stem quadrangular, leaves sessile ovate-lanceolate 5-nerved, calyx-lobes 
ovate suddenly caudate, keel winged, anthers }-} in. curved. Wight Ic. t 
1321; Griseb. in DC. Prodr. ix. 45; Dalz. & Gibs. Bomb. Fl. 156 (syn. excl.) ; 
Clarke in Journ. Linn. Soc. xiv. 42b. E. grandiflorum, Wall. Cat. 4355; 
Griseb. in DC. Prodr. ix. 47. E. Metzianum, Herb. Hohenacker, n. 807. E. 
sulcatum, Herb. Wight, not of Roxb. E. tetragonum, B. tricolor, Bot. Mag. 
t. 4340. 
7 Deccan PENINSULA, frequent from the Concan and Orissa to Courtallum. 
Considered by Mr. Bentham only a form of E. tetragonum, but differs from that 
(and the larger E. Perrottetii) in the unsymmetrie flowers, the buds distinetly curved 
at the tips, and the anther-cells curved and tapering upwards. The calyx-lobes do 
not taper gradually as in E. Perrottetii. The flowers are larger than those of E. 
tetragonum, smaller than those of Æ. Perrottetii. The corolla-segments are (very 
generally) white in the lower half, full azure-blue in the upper. 
5. E. axillare, Thwaites Enum. 203; stem quadrangular, leaves ovate- 
lanceolate 3-nerved thin succulent, flowers mostly solitary on axillary peduncles, 
calyx-lobes with a dorsal cordate-lanceolate reticulated wing, anthers j in. 
straight shortly suddenly beaked. 
Cryton; in the Pasdoon Corle, Walker, Thwaites. . 
Stem 6-18 in., procumbent and branched or erect and simple. Leaves 2} by 1 m, 
base tapering, lower mostly long-petioled, very- thin, dried reticulately nerved. 
Peduncles 1-$ in., numerous, often from the lower axils ; upper imperfectly corymbed. 
Calyz-lobes 4 in.; wing (in young fruit) } in. broad. Corolla-lobe 4 in., lanceolate, 
acute, cyaneous ( Thwaites). Capsule 4 by } in. 
Van. pentamera ; corolla-lobes 5 broader shorter obtuser than in E. azillare type 
— Ceylon, Zhwaites.—A dubious plant, perhaps more nearly allied to E. Walkeri, but 
in the thin succulent leaves and cordate calyx-wings altogether resembling Æ. axillare. 
** Corolla large or medium-sized, lobes 5 (all from the Deccan Peninsula 
or Ceylon). 
6. E. Walkeri, Arn. in Ann. Sc. Nat. 2, xi. 176; leaves ovate or lan- 
ceolate acute 3-nerved, peduncles axillary solitary and terminal subcorymbose, 
calyx-lobes with an ovate-lanceolate dorsal wing, corolla-lobes } in. broadly 
elliptic, anthers j-1 in, subtruncate. Griseb. Gentian. 110, and in DC. Prodr. 
ix. 45; Wight IU. t. 157, b. fig. 1. E. ovale, Griseb. Gentian. 111, and in 
DC. Prodr. ix. 46; Clarke in Journ. Linn, Soc. xi. 420. E. foliosum, Griseb. 
in DC. Prodr. ix. 45. E. zeylanicum, var. 8 only, Thwaites Enum, 203. 
Cexrov ; Walker, &c.; central province, alt. 5000 ft., Thwaites (C.P. n. 38). 
Stems 1-3 ft., suberect, often with long branches from near the base, quadran- 
gular or obscurely 4-lineolate. Leaves (in the original E. ovale) 1 by 2 in. ovate, 
acute, base rounded, subsessile (in Thwaites E. zeylanicum, var. B), 23 by $ in, lan- 
ceolate, acuminate at both ends. Calyx-lobes 1 in., base of wing narrowed or rounded, 
rarely cordate. Corolla-lobes acute, white or pale blue. Capsule 1-3 by i in.—E. 
ovale of Griseb. has been reduced by Thwaites to E. macranthum, but the corolla- 
lobes are described by Grisebach as 8 mill. long, and it was doubtless = E. Walkert, 
as is E. ovale of Wight's and Gardner's Herbarium. In this species 1-flowered 
peduncles from the lower axils are frequent. : 
