Scojjario.] scropiiulauinej:. 253 



Hongkong, Wright. A species of American origin, now frequently occurring as a weed in 

 tropical Asia, Africa, and Australia. 



12. MICROCARP^A, K. Br. 



Calyx tubiilar-campanulate, 5-toothed. Corolla campanulate, 4-lobcd. 

 Stamens 2, short. Style short, with a capitate stigma. Capsule ovoid, 

 opening loculicidally in 2 entire valves. — Annual. Leaves opposite. Flowers 

 minute. 



The genus consists of only one species 



1. M. muscosa, H. Br. ; Benth. in DC. Prod. x. 433. A glabrous much- 

 branched annual, scarcely 1 in. high. Leaves almost sessile, oblong or laucco- 

 late-linear, 1 to 1| lines long, entire. Flowers solitaiy and sessile iu the 

 axils of the leaves. Calyx 1 line long, angular, the teeth spreading and 

 slightly ciliate. Corolla shorter the calyx. 



Hongkong, Wright. Also in Ceylon and the Peninsula of India, in East Bengal, in Java, 

 and in tropical Anstraha. 



13. BUCHNERA, Linn. 



Calyx tubnlar, obscurely nerved, shortly 5-toothed. Corolla-tube slender, 

 straight or slightly curved, the limb with 5 almost equal obovate or oblong 

 spreadhig lobes, the 2 uppermost innermost in the bud. Stamens 4, in pairs, 

 included in the tube. Anthers 1-celled. Style club-shaped at the top, en- 

 tire. Capsule straight, opening locidicidally in 2 entire valves. — Stifl', scarcely 

 branched herbs, usually drying black. Lower leaves opposite, the upper 

 alternate. Flowers in terminal spikes. 



A considerable genus, dispersed over the tropical and subtropical regions of America, Asia, 

 Africa, and Australia. 



1. B. cruciata, Ham.; BentJi. in DC. Prod. x. 495. A simple or 

 scarcely branched, stiff, erect annual, f to 1^ ft, high, pubescent or nearly 

 glabrous. Radical leaves ovate or obovate, spreading, about 1 in. long ; stem- 

 leaves linear or the lower ones oblong, distant, the upper ones small. Flowers 

 closely imbricated in a conical or oblong terminal quadrangular spike, seldom 

 above 1 in. long, with bracts about as long as the calyx. Calyx about 2 lines 

 long. Corolla-tube usually twice as long. Capsule about as long as the calyx. 

 — B. strlda, Benth. in DC. 1. c. B. densijhra. Hook, and Arn. Bot. Beech. 

 203. 



West Point and Little Hongkong, Champion. Also in the Himalaya and in IJiirmah. 



14. STRIGA, Lour. 

 Calyx tubular, with prominent nerves, 5-toothed or 5-lobed. Corolla-tube 

 slender, abruptly bent at or above the middle ; the limb spreading, somewhat 

 2-lipped, the upper lip emarginate or 2-lol)ed, innermost in the bud, the lower 

 3-lobed. Stamfeus 4, in pairs, included in the tube. Anthers 1-celled. Style 

 club-shaped at the top, entire. Capsule straight, openhig loculicidally. Stiff 

 erect annuals, parasites on roots, and usually drying black. Lower ^ leaves 

 opposite, the upper entiie, sometimes all reduced to small scales. Flowers 

 sessile, usuallv forming terminal spikes. 



