This is a high-resolution digital download of Plate 4186 from Curtis's Botanical Magazine. The original illustration was hand-colored in the 1800s. This listing includes both the botanical image and its accompanying description tab.

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TAB. 4186.

EXOSTEMMA LONGIFLORUM. Long-flowered Exostemma.

Nat. Ord. RUBIACEE. PENTANDRIA MONOGYNIA.

Generic Character Calycis tubus obovatus, limbus 5-dentatus. Corolla tubo tereti,

limbo 5-partito, laciniis linearibus. Stamina filamenta nunc tubo usquè aut fau- cem, nunc vix basi adnata. Anthera lineares exsertæ. Stylus filiformis apice clavatus indivisus aut bilobus. Capsula calyce coronata aut demum subnuda bi- locularis, ab apice septicido dehiscens, mericarpiis nempè semi-teretibus seu semi- ovatis, commissurâ chartaceâ. Placenta linearis in medio cujusque loculi. Semina plurima retrorsum imbricata margine membranacea alata suborbiculata ; albumine carnoso; cotyled. planis.-Arbores aut frutices sæpius glabri. Folia ovalia aut lan- ceolata breve petiolata. Stipulæ utrinquè solitaria. Pedunculi axillares aut ter- minales. Flores candidi aut rubentes. De Cand. EXOSTEMMA longiflorum; foliis lanceolatis acuminatis basi in petiolum perbrevem attenuatis glabris, pedicellis terminalibus axillaribusve, calycis dentibus tubum æquantibus lineari-subulatis strictis, corolla foliis triplo 4-plove longiore. EXOSTEMMA longiflorum. Roem. et Sch. Syst. Veg. v. 5. p. 18. De Cand. Prodr. v. 4. p. 359. Spreng. Syst. Veget. v. 1. p. 405. CINCHONA longiflora. Lamb. Cinchon. p. 38. tab. 12. excl. syn. (De Cand.) We received this plant at Kew, from Mr. Makoy of Liege, under the name here adopted, and though some discrepancies exist between our specimen and the figure of Lambert above quoted, yet they are too trifling to lead me to suppose the species otherwise than the same. In Mr. Lambert's representation the leaves are narrower, the flowers rather smaller, and the segments of the calyx and corolla are too short; probably occasioned by being drawn from an imperfect specimen in the Herbarium of Aublet. Lambert gives Guiana as the native country of the spe- cies; while De Candolle, on the authority of Richard, says it is in- digenous to St. Domingo. Be that as it may, it constitutes a very pretty shrub, flowering freely and copiously, and the blossoms are fragrant and remarkable not only for their great length but for their change of colour, at first pure white, gradually becoming red. Exostemma is a genus separated from Cinchona, chiefly on account of its exserted stamens, whence the name *w, without, OCTOBER 1ST, 1845. • Thanky whiskers beyond, and σrépμa, a crown. E. longiflorum blossoms with us in June and continues for some weeks in beauty.

Botanical Description A low shrub, in our stove about a foot and a half

high, much branched; the branches opposite, ultimate ones short and subcorymbose. Leaves lanceolate, sharply acuminated, en- tire, tapering into a very short footstalk at the base, penninerved, of a texture between coriaceous and membranaceous. Stipules broadly ovate, acuminate, appressed. Peduncles axillary and ter- minal, short, often clustered or subcorymbose, bracteated. Calyx- tube purple, oblong, tapering at the base, glabrous; teeth or segments equal in length to the tube, erect, linear-subulate. Corolla with a very long slender tube nearly a span in length, cylindrical, slightly widening upwards and suddenly expanding into the five segments of the limb, which are one-third as long as the tube, linear, obtuse, soon reflexed. The corolla, green in the bud, is pure white on first expanding, at length drooping and changing to red. Stamens placed at the mouth of the tube and wholly exserted; about as long at the limb. Filaments flat, slightly dilated upwards, when they are broader than the very narrow linear anthers.