JExacum.] xcvii. GBNTiANACBiE. (0. B. Clarke.) 99 



6-nerved, in small specimens lanceolate and subsessile ; petiole J in. Ct/mes terminal, 

 «reet; pedicels mostly ^ in.; the 1 -flowered peduncle at the hifurcation of the 

 cyme often 1-2J in. Calyx-lobes A in.; wing in fruit ovate or cordate, nerved. 

 Corolla-lobes J in. or more (or in small examples A in.). Anthers ^ in., finally de- 

 hiscing nearly to the base. Capsule i in., subglobose. — Roxburgh's Ic. Ined. of his 

 E. ciarinatum resembles in all respects E. pedmnculatum, Linn., except that the corolla- 

 lobes are orange-yellow. As a yello-w corolla is unknown in Exacum, Sprengel placed 

 the species under Sebcea. Arnott and Grisebach, assuming that Eoxburgh had not 

 seen the plant alive, reduce it to E. peduncvlatvm. But as Eoxburgh had the plant 

 in cultivation and both figured and described E. pedimculatum (under E. stdcatwm), it 

 is not likely that his E. earinafum is the same thing. Eoxburgh's description seems 

 almost certainly to refer to E. petiolare, Griseb., which has white corolla-lobes with 

 yellow anthers and the marked calyx-wing, &c., described by Eoxburgh. It doubtless 

 ■extends to Ceylon, for Thwaites' E. petiolare (Clarke in Journ. Linn. Soo. xiv. 427) 

 were almost surely rightly named, though the number (C.P. 1876) attached to the 

 specimens is wrong. 



**** Small plant with small 6-merous flowers. 



16. E. pteranthum, Wall. Cat. 4360; leaves elliptic acuminate 3- 

 nerved often petioled, calyx-lobes winged. Ch-iseb. in DC. Prodr. ix. 47. 



Pegu and Tenassbkim, Wallich, Lobb, alt. 3-4000 ft., Kurz. 



Stem 4-8 in., erect, quadrangular, simple or slightly branched upwards. Leaves 

 If by I in., base narrowed ; petiole sometimes J in. Ct/mes terminal, few-fid., axillary 

 1-fid. peduncles sometimes added ; pedicels 0-+ in. Calyx-lobes | in., ovate, acute ; 

 wings broad-lanceolate or ovate. Corolla- lobes\ in., ovate-lanceolate. Anthers i in., 

 dehiscent finally nearly to the base. Capsule ^ in., subglobose. 



DOTIBTPni, SPECIES. 



E. puNCTATXJM, lAnn. f. 8uppl. 124 ; leaves very shortly petioled 3-nerved glan- 

 dulose-punctate, corolla blue, stamens exserted yellow. Griseb. in DC. Prodr. ix. 47. 

 — India, Koenig. 



3. SEBH:A, R. Br. 



Erect, annual herbs. Leaves small, sessile. Flowers small, yellow, in 

 ■terminal cymes. Calyx4ohes 4-5, keeled. CoroUor-tube cylindric ; lobes 4-6 

 patent. Stamens 4-5, on the upper part of the corolla-tube, filaments sho;rt 

 linear ; anther-cells oblong, opening introrsely by longitudinal slits. Ovary 

 completely 2-ceUed, placentae large ; style short, linear, stigma globose or 

 suhspathulate. Capsule globose or ellipsoid, septicidally 2-valved. Seeds very 

 many, minute, polyhedral, testa coarsely loosely reticulated. — Species 18; in 

 Africa, Madagascar, Australia, and N. Zealand. 



S. lEbasiana, Clarke in Jowrn. Linn. Soc. xiv. 428 ; cauline leaves ^^ 

 in. lanceolate-linear, cyme 1-7-flowered, calyx 6-partite. Cicendia microphylla, 

 Edgew. in Trans. lArm. Soc. xx. 83. Erythraea microphylla, Bemth. in Gen. PI. 

 ii. 811. 



N. W. Himalaya ; Gurwhal, alt. 5-6000 feet, Edgeworth ; Nepal ; Wallich. 

 Khasia Mrs., KoUong Eock, alt. 5500 ft., Clarice. — Disteib. Angola. 



Stem, 6 in., simple, slender, angular, glabrous. Eadical leaves at flowering time. 

 Pedicels jj-J in., rigid, angular. Sepals 1 in., lanceolate, keeled, searious-margined. 

 Corolla-tmbe j- in. ; lobes ^ in. ; elliptic. Anthers oblong, scarcely apiculate, without 

 glands at the base, finally straight ; stigma a flattened ellipsoid, papillose on the edge. 

 — 8. awrea, E. Br. (Griseb. in BC. Prodr. ix. 52), has the upper leaves broader, but the 

 plant collected by Welwitsch in Angola is identical with the Indian, except that its 

 anthers are minutely apiculate. 



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