82 ME. G. BENTHAM ON BIXACEJE AND SAMTDACE^. 



3. C. longifolia. Foliis longe obovali-oblongis glabris, floribus par- 

 vis glabris dense cymoso-glomeratis. — Folia ultrapedalia. Flores 

 rameales. Petala 3-5 lin. longa.' — Mayna longifolia, Poepp. et Endl. 

 Nov. Gen. et Sp. iii. p. 64. t. 271. 

 Hab. Eastern Peru and Western Brazil. At the confluence of the Teffe 

 and the Solimoes, in primitive woods, Poeppig ; in shady mountains near 

 Tarapoto, Spruce, n. 4255. 



Dendbostylis, Karst. 



"With much general resemblance to Mayna, especially in the male 

 flowers, this genus differs in the female (or occasionally herma- 

 phrodite) flowers, which, with three placentas, have three distinct 

 styles, each one bifid with laciniate branches, and the fruit is said 

 to be indehiscent. It bears long soft spines, like some species of 

 Mayna. To this genus belong the Mayna denticulata (Benth. in 

 ' Hook. Journ. Bot.' iv. p. 115), from British Guiana ; the M. echi- 

 nata (Spruce, PI. Exs. n. 4070 and 4499), from North Brazil ; and 

 a New Granada species from Purdie ; but whether they be iden- 

 tical with or distinct from any of the five described by Karsten in 

 the ' Linnaea' (xxviii. p. 431), I have not been able as yet satisfac- 

 torily to ascertain. 



Etania, Vahl. 



This genus, consisting of five or six species from tropical Ame- 

 rica, chiefly from Guiana, was formerly placed near to Lcetia, 

 but has since been removed to Passifloracese, probably on account 

 of a cupular disk surrounding the ovary in some species. This 

 disk is not, however, to be compared with the corona of Passi- 

 floreae, which is always outside the stamens; nor yet with the 

 disk of Lunania, for it is decidedly hypogynous ; and the general 

 arrangement of the perianth and stamens appears to me to 

 be much more that of Bixaceae than of Passifloreae. The aestiva- 

 tion of the sepals, much imbricate as in Lattice and its allies, is, 

 however, slightly different in the mode of imbrication ; for, as in 

 Cistineae, two sepals are outside and the three inner ones con- 

 torted. There are no petals, the stamens are hypogynous, the 

 anthers elongated, as in Oncobeae, whilst all other characters bring 

 the genus into Laetieae. 



Lcetia, Linn. 



This genus, like ProcTcia, had long been a receptacle for miscel- 

 laneous polyandrous plants with parietal placentas, but has latterly 



