478 NATURAL HISTORY OF PLANTS, 



unequal. Corolla shortly funnel-shaped or subrotate ; tube short or 

 rather long; throat glabrous ; lobes of limb 4, oftener acute, contorted/ 

 finally open. Stamens 4, inserted in throat ; filaments short ; anthers 

 dorsifixed at base, oblong or subsagittate, at apex obtuse or acute ; 

 cells introrse, free at base, rimose. Germen 2-celled ; disk orbicular 

 or subcupular ; style slender or subulate, at apex stigmatose subentire, 

 very shortly 2-lobed, or 2-linear-ramose. Ovules oo, inserted on an 

 oblong placenta peltately affixed to middle of septum. Fruit capsular, 

 turbinate or obovoid, coriaceous or parchment-like, loculicidal at vertex; 

 valves 2, fissous. Seeds oo , inserted on thick separable placentas, 

 globose or angular, granular or reticulate, albuminous. — Glabrous or 

 pubescent, slender ramose shrubs ; leaves petiolate, opposite, ovate or 

 lanceolate, membranous veined ; stipules interpetiolar, deciduous ; 

 flowers ^ axillary in loose umbelliform cymes, often few, oftener 

 drooping or pendent ; pedicels slender, ebracteolate.^ [Mexico.'^) 



160. Sipanea Aubl.^ — Flowers 5-merous ; receptacle ovoid or 

 obconical. Calyx lobes 5, lanceolate (Limnosipaina^) , elongate- subulate 

 or filiform (^impa/im), persistent, sometimes glanduliferous within at 

 base. Corolla funnel-shaped or hypocrateriform ; tube slender rather 

 long ; throat variously pilose or glabrous, sometimes dilated ; lobes 

 of limb 5, ovate-oblong, contorted, finally open. Stamens inserted at 

 throat ; filaments short or elongate very slender ; anthers oblong or 

 linear dorsifixed, enclosed {Eusipanea) or exserted (Limnosipania). 

 Germen 2-celled ; disk orbicular or conical, sometimes very small ; 

 branches of slender style 2, linear stigmatose. Ovules oo, inserted on 

 placentas peltately affixed to septum. Fruit capsular, ovoid or sub- 

 globose, loculicidal. Seeds oo, inserted on thick placentas, minute 

 horizontal angular, reticulate or foveolate, albuminous. — Annual or 

 perennial herbs, sometimes radicant aquatic or mud plants ; leaves 

 o^i^osite{Eiisipanea) or 3- oo-nate,glabrous, setose or hispidulous, ovate, 

 oblong or lanceolate; stipules linear-elongate, persistent or ;^ flowers® 



* Covering the right margin of the lobe (seen Jiub. 195. — DC. Prodr. iv. 414. — Exdl. Gen. n. 

 from the exterior). 3248. — B. H. Gen. ii. 52, n. 70. — Virecta L. r. 



2 Small, white. • Suppl. 17.— G^rtx. f. Fruct. iii. 31, t. 184,— 



' A genus somewhat resembling Chiococca J. Mem. Mm. vi. 385. 



among the mnltiovulate Ruhiacece. ^ Hook. f. Icon. t. 1050. —B. H. Gen. ii. 53, 



* Spec. 7, 8. Hemsl. Diagn. PL Nov. Mex. n. 71. 



31. — Walp. Ann. i. 371. ' ?If stipules then equal to leaves (as in the 



* Guian. i. 147, t. 56.— PoiR. Diet. vii. 199.— Stellatae). 



Lamk. ///. t. 151.— Pers. Syn. i. 205.— Rich. « Small, white or pink. 



