344 NATURAL HISTORY OF PLANTS. 



of five unequal enclosed stamens with short and rounded anthers. 

 The capsule is loculicidal, and the imbricate seeds are winged top and 

 bottom. They are trees and shrubs of tropical America, with opposite 

 leaves, and the inflorescences, axillary and terminal, are in very 

 ramified clusters of cymes. 



This series is also represented by several old-world genera, some 

 of which have been referred to the genus Cinchona, as Hijmenopogon, 

 from the Himalaya, having the septicidal capsule of CascarUla, with 

 winged seeds, a valvate corolla with the internal hairs reversed, and 

 flowers in terminal corymbiform cymes, the bracts of which may 

 present exactly the same characters as the foliaceous sepal of 

 Macrocnemnm ; HymenodicUjon, from India and tropical Africa, with 

 short pedicels (so that the divisions of the inflorescences become 

 spikelike), bracts also foliaceous, petiolate and reticulate, and fruit 

 capsular and loculicidal, not septicidal. Corynantke is a tree of 

 Guinea with loculicidal capsule, winged seeds, valvate corolla ; but 

 the lobes of the latter are furnished near the summit with a long 

 narrow club-shaped appendage, and the secondary divisions of the 

 mixed inflorescence are nearly verticillate. Danais, exclusively 

 domiciled in the eastern tropical African isles, consists of climbing 

 shrubs with polygamo- dioecious flowers. The corolla is valvate, with 

 five stamens, exserted in the males, short and enclosed or absent in 

 the females. The style is short with bare branches in the male flowers, 

 long exserted and with branches terminated by a papillose cone in the 

 female. The fruit is a short loculicidal capsule, and the seeds, 

 imbricate and peltate, are bordered by a circular wing. The floral 

 cymes are compound and corymbiform, axillary. 



There is one genus, Manettia, in America whose stems are also 

 slender and volubile, and the inflorescences, short and axillary, 

 sometimes few- or one-flowered. But they are herbaceous or sub- 

 shrubby plants. The flowers are 4, 5-merous, with a corolla often 

 tubular, limb valvate, and an ovary with two multiovulate cells, 

 surmounted by a long slender style, entire or bifid. The capsule is 

 septicidal; the seeds irabricate and surrounded by a dentate wing. 

 The placenta, erect or ascending, is supported by a short foot, which 

 connects these plants with the Oldenlandiece. In Alseis, likewise 

 inhabiting tropical America, the flowers are also polygamous, with 

 a placenta attached to the ovarian coat by a contracted point ; but 

 it is descending, and the flowers are in clusters with short pedicels, 



