346 Mr. J. Miers on the Canellacese. 



taceous tunic, being quite free from the raphe which is imbedded 

 in a more internal envelope, must be a development subsequent 

 to the growth of the true coats of the ovule, and that it is in 

 reality an arillus : that the intermediate tunic in which the 

 raphe is imbedded is the arilline*, while the innermost integu- 

 ments immediately covering the albumen are the testa and 

 tegmen, as shown by their areolar thickening at the chalaza. 

 The characters of the genus, as I have observed them, may be 

 defined thus : — 



CANEhhA, Murraij, Linn. Syst.; P. Brown. Jam. 215 ; DC. Prod?: 

 i. 563; Endl. Gen. 5457. Winterana, Linn. Gen. 598. — 

 Sepala 3, suborbiculata, concava, coriacea, margine ciliata, 

 suberecta, persistentia, sestivatione imbricata. Petala 5, uni- 

 seriata, sepalis fere duplo longiora, oblonga, concava, crasso- 

 carnosa, erectiuscula, qiiarum 2 paullo angustiora et interiora, 

 decidua, gestivatione imbricata. Stamina in tubum cylindri- 

 cum petalis sequilongum monadelpha, tubo carnosulo e disco 

 parvo scutelliformi hypogyno producto, apice ultra antheras 

 breviter extenso, ibidem tenuiori et pellucido-punctato, mar- 

 gine fere integro aut subcrenulato ; antherce extrorsse, e locellis 

 20 subfequalibus dorso omnino adnatis, linearibus, compresso- 

 angustis, parallelis, sejunctis, rima media longitudinali 2- 

 valvatim dehiscentibus : pollen reticulatum. Ovarium su- 

 perum, cylindricum, vel conico-oblongum, glabrum, 1-locu- 

 lare ; ovula 4 reniformia, e medio ad placentas 2 oppositas 

 lougitudinales parietales per paria collateralia horizontaliter 

 appensa, funiculo brevi in sinu affixa. Stylus crassus, ovario 

 continuus et Eequilongus, os tubi attingens. Stigma trun- 

 catum, obsolete bilobum. Bacca ovata, carnosa, calyce im- 

 mutato suifulta, stylo breviter apiculata, 1-locularis. Semina 

 4, in mucilaginem condita, rotundato-ovata, subreniformia, 

 bilo minusculo cavo sub apicem notata ; tunica externa {ai'il- 

 lus) dura, crystallino-crustacea, la3vis, nitida, sub lente con- 

 fertim granulata, atra; tunica intermedia {ariUina) externa 

 conformis, sub apicem apiculata, et hinc ad illam paullo super 

 hilum affixa, membranacea, latere ventrali ab apice usque ad 

 medium raphide filiformi percursa ; integumentum internum 

 (e 2 agglutinatis) crassiusculum, obscurior, chalaza majuscula 

 ventrali notatum. Embryo in verticem albwninis copiosi car- 

 nosi et eo 4-plo brevior versus faciem dorsalem reconditus, 

 hinc valde excentricus, teres, curvatus; radicula extremitate 

 crassiori hilo proxima, cotyledonibus semiteretibus chalaza 

 aversis sequilonga. 



Arbores Antillance et Columbiana sempervirentes summo ramosce ; 



* Hiij. vol. 27B ; Linn. Trans, xxii. 81. 



