208 NATURAL HIS TOBY OF PLANTS. 



the slii^litly ruminated albumen. Tlie genus Annxagorea consists 

 of trees or shrubs, of which half a dozen species are known, 

 divided between tropical Asia' and tropical America.- The leaves 

 are of very variable consistency -^ and in their axils are the flowers, 

 solitary, or in two- or few-flowered cymes." We may define Ariaxa- 

 fforea as U/iona with dehiscent fruits. 



Biscpnliim,^ possesses a perianth with dimerous verticils, with the 

 sexual organs of a Unona of the section Po/i/nlfhia, to which it 

 bears the same relation as Tetrapetahm does to Uvaria. The 

 calyx consists of tw^o valvate sepals. The four petals are narrow, 

 linear-spathulate, bent, and inclining inwards at the apex, while the 

 bases are joined by a sort of common ring ; the only known species of 

 this genus is D. anomalwm^ a shrub from Borneo with alternate thick 

 feather- veined leaves, and solitarj^ terminal flowers on long peduncles. 



Boccif/ea^ may be considered as Unona, with small flowers, but with 

 the stamens of the Miliusca. Its characters are, on the whole, those 

 of JJnona : a gamosepalous calyx^ of three divisions, and a corolla of 

 six valvate petals, which are sometimes those of a true JJnona, 

 sometimes those of certain species of Folyalihia, Melodorum, or 

 Trifji/neia.^ Sometimes the contraction seen at the base of the 

 inner petals becomes so marked that this corolla, though less 

 elevated, becomes very like that of several Mifrepliorea. In about 

 half the Indian species of this genus, which have been termed 

 AJpkonsea, the carpels and stamens are very numerous.'" The former 



' Wai-P., Jiej). i. 80; Ann. iv. 72; vii. 55. — with blunted angles and without any depression on 



MlQ., Fl. Ind.-Bat., i., p. ii. 49; Ann. Mus. the edges. That of B. alba A. S. H. {foe. cit.) 



Ltiffd. Bat., ii. 22, t. 2. is a cupuliform sac with only three short teeth on 



- Bentu., Hook. Journ., v. 8 ; Journ. Linn. the eA^c. In B. viridis A. S. H., it is an equi- 



Soc.,v. 71. — Maut.. FJ. Bras. Anonac, 40, t. 5. lateral triangle with the vertices not blunt. In 



•* Those of most American species, except A. B. lieterantha H. Bn. [Adansonia, viii. 173), 



prinoides, become very thick and coriaceous. and lutea, Hook. & Tn. (Fl. Ind., i. 153), the 



■* They may be slightly extra-axillary. Those sepals, united at the base, are separated from 



of A. acuminata sometimes form a uniparous two- one another by three deep clefts. 

 flowered cyme, the two flowers, which are close ^ In B. aJha A. S. H., those of the outer co- 



togethcr, being of different generations. rolla are oval-acute, and the inner ones are similar 



' Hook. F., Linn. Trans., xxiii. 156. — B. H., at the apex, but hollowed out on each side near 



Oen., 25, n. 16. the base. In B. riridis A. S. H. they are all 



^ Hook. F., loc. cit., t. 20. similar, concave and oval, as they are in B. ver- 



' ,\. S. H., Flor. Bras. Mer., i. 41, t. 9. — A. rucosa Audi canescens. In B. mult ijlor a the claws 



DC, Mem., 39. — Spach, Suit, a Buff., vii. 514. of the inner petals are hardly indicated. 

 — }i\\UT., Fl. Bras., Anonac, 44; 1. 11. — Endj-., '" Their number is indefinite in Alplionsea 



Gen., n. 4709. — 15. H., Gen., 29, n. 39 (ex part.). hdea and venlricosa, and in Uvaria Bada Jamba 



— H. l*y., Adansonia, viii. Iti3, 338. — Alphonsea RoxB. (which apjiears identical with B. ven- 



HOOK. F. & TuoMS., Fl. Ind., i. 152. — B, H., tricosa), plants all of which we refer to the genus 



Gen. 29, n. 37. Bocagea. But we shall see that in other species 



" Tliat of J?, verrucosa {Alphonsea verrucosa of Alphonsea the number of carpels is but smal' 



Hook. & TnoMS., ex Tuw.) is like a triangle though the stamens may be very numerous. 



