96 



NATURAL niSTORY OF PLANTS. 



tropical America. The corolla is always rcclucecl to one petal, tlie 

 anterior one. The an'lroceum also generally consists of only one 

 fertile st nnen ; but the number of ovules in one cell is more than 

 two. In CalUsthene (fig. l32-lo4), the capsular fruit has a thick 

 columella, which persists after the tall of the valves. In Qiialca, 

 the columella is wanting or scarcely developed. The ovary cells are 

 often incomplete ; the ovules, disposed obliquely in two rows at the 

 back of the placentas, are incompletely anatropous or almost ortho- 

 tropous, and already surmounted by a wing-shaped dilatation still 

 more manifest in the seeds. The posterior spur is sometimes reduced 

 to a very small size. 



II. EPJSMA SERIES. 



Ermnu'^ (fig. 135-137), which alone constitutes tliis small scries, 

 has the externally irregular, pcntamerous, monauikous flowers of 



Fig. 13J. Flower. 



Fi^. 137. Long. sect, of 

 fruit. 



Fi-. 13G. Long. sect, of 

 flower. 



Fochj/s/'a, the corolla being also reduced to the anterior petal ; but 

 the ovary plung(\l in the concavity of the risceptacle, obconical and 

 spurred behind, is quite inferior as regards the insertion of the calyx, 



I Ei'DOE, n. Oiiian. liar, i, 7, t. 1 (1805).— —13. II. Oni. O'G, n. Z.—Dchiaa Ku-M. et ! 



DO. rriiilr. iii. 2!). — Sv.un, Suit, a litiffoii, yii. Svu. S./-^t. i. 4 (ex K-xni.. luc.eit.). — Ditlmtiria 



328. — Kmh.. Gni. n. 6073. — rAYER, EInii. 150, BruE.NG. Sijst. i. 4 (ex E.ndl.). 

 fig. 2i8-2G2.— II. liN. iu Vaijcr I'tim. Nut. 3J2. 



