Tas. 4423 
EXACUM Zryuantcum. 
Ceylon Exacum. 
Nat. Ord. GentIANE®.—PEnTANDRIA Monoeynta. 
Gen. Char. (Vide supra, Tas. 4340.) 
Exacum Zeylanicum; caule tetragono subsimplici, foliis sessilibus elliptico- 
 oblongis 3-nerviis margine levibus, calycis 5-partiti alis semicordato-ovatis, 
corollee ceerulez lobis obovatis obtusis, filamentis exsertis. Griseb. 
Exacum Zeylanicum. Roxb. Fl. Ind. 1. p. 398. ed. Wall. 1. p. 414, Griseb. in 
De Cand. Prod. 9. p. 45. 
Curronta trinervis. Linn. Sp. Pl. p. 272. 
Listanruus Zeylanicus. Spreng. Syst. Veget. 1. p. 586. 
Lf¥stmacuta folio sinuato acuminato trinervio, flore cxruleo, calyce carinato 
alato. Burm, Zeyl. p. 145. 
A beautiful annual, raised from Ceylon seeds by Mr. Moore 
of the Glasnevin Botanic Garden, Dublin, where it flowered in 
September, 1848. It is really a striking plant, and by no 
means ill-figured in Burmann above quoted ; especially when we 
consider the period at which that plate was published (1737). 
_ The species is now, for the first time, introduced into Europe, 
- we trust so desirable a plant will continue to be propagated 
y seeds, : 
Dzscr. Annual. Stem erect, four-sided, glabrous, as is every 
part of the plant, corymbosely branched above and there only. 
Leaves opposite, sessile, (for they can scarcely be said to taper 
into a foot-stalk,) elliptical-oblong or lanceolate, acuminate, 
distinctly three-nerved, paler and with the nerves prominent 
beneath, the edge or margin smooth to the touch. Corymds 
terminal, leafy. Branches (or in other words peduncles and 
pedicels) four-sided, rather slender; ultimate pedicels three 
together. Calyx deeply five-cleft, membranaceous, green, the 
lobes tapering into subulate points, their back, down to the 
base of the calyx, having a broad membranaceous wing. Corolla 
rotate, large, handsome, rich purplish-blue; the /ue short, 
c 
_ FEBRUARY Ist, 1849. 
