210 ifcfr, Schomburgk's Description of the Mora Tree, 



plotropis on the one hand, and Leptolobium, and, perhaps, Layia on the other, 

 than between Ormosia as a papilionaceous genus, and Bowdichia as a Cassiea. 

 At any rate, the name of Sebipirece must be abandoned on account of the iden- 

 tity of the genus Sebipira with Boivdichia. 



Mora, as a genus of Cassiece, is distinguished by the following character : 



Calyx urceolato-cainpanulatus, breviter et late 5-dentatus, sestivatiohe imbri- 

 cativa. Corollce petala 5, sequalia. Stamina 10, exserta ; quorum 5 pe- 

 talis opposita, fertilia sunt, antheris bilocularibus medifixis longitudinali- 

 ter dehiscentibus ; 5 petalis alterna, filiformia, antheris clavatis cassis. 

 Ovarium breviter stipitatum, pluri-ovulatum. Stylus compressus, sub- 

 rectus, stigmate tenui terminali. Legumen coriaceo-lignosum, oblongum, 

 abortu (an constanter ?) monospermum. Semen magnum, reniforme, 

 cotyledonibus crassis sublignosis, radicula conica recta. 



To the species I should propose the name oi Mora excelsa ; and to Mr. Schom- 

 burgk's general description of the appearance of the tree I would add the fol- 

 lowing notes taken from the dried specimens. No. 496, of his collection. 



Folia alterna, abrupte pinnata, glabra. Petiolus communis infra foliola 

 inferiora angulatus, superne teres, supra canaliculatus. Foliola 3-4-juga, 

 opposita, petiolulata, oblongo-elliptica, coriacea, supra nitida, penninervia 

 et reticulato-venosa, 5 — 6 poll, longa. Nee stipulee nee stipellse obviae 

 sunt. Flores sessiles, densissime spicati. Spicce in paniculas terminales 

 simplices dispositse, rhachi pubescente. Bractece parvse, squamseformes, 

 citissime deciduee. Calyx circiter 2 lin. longus, glaber, nitidus : denies 

 inter se fere sequales, latfe rotundati, margine breviter ciliati. Petala 

 obovato-oblonga, calyce subduplo longiora, omnia sequilatera, et inter se 

 aequalia, apice tenuissime ciliata, basi in unguem brevem angustata. Sta- 

 mina fertilia lana longa intertexta citissime decidua barbata, filamentis 

 proesertim basi crassiusculis ; sterilia glaberrima. Stylus glaber, stamina 

 subiequans. Semen 3 poll, latum. 



Under No. 148 of his collection Mr. Schomburgk has sent specimens from 

 the Upper Essequibo, without any note, which only differ from the above by 

 the flowers being smaller, the spikes shorter, the ovarium rather smaller in 



