38" THE JOVENAL OF BOTANY 



This, vvhicli is in excellent condition, ^vas collected between the years 

 1786 and 1790. For a note on this interesting early Jamaican 

 collection see Jonrn. Bot. liii. 104 (1915). 



PoMPHiDEA Miers. 



This genus was described by Miers in his account of the 

 S. American Apocynacete (p. 18, t. i. d., 1878) from a specimen in the 

 British Museum Herbarium collected by Swartz in Jamaica. Miers's 

 description and drawings of the pistil which led him to i)lace the genus 

 in the family Apocynacete near AmhcUania, are inaccurate; and 

 examination of Swartz's material shows the floral structure to be that 

 of Ravoiia, a genus of Ilutaceae. Urban ( Syml). Antill. vi. 96), as 

 a result of an anatomical examination of a fragment of a leaf and twig 

 of the original specimen, had previously transferred Ponqjliidea to this 

 family. 



Poinphidea Sicartziana Miers therefore becomes Kavema 

 SwARTZiANA, comb. nov. 



Erythroxylum jamaicense, sp. nov. 



Arbor 4-5 m. alt. Folia eUi})tica apice atque ))asi rotundata, 

 4-7 cm. longa, 2-5-4 cm. lata, petiolo circa 1 cm. 1. Stipuhe 2-8 mm. 

 long., ])ersistentes triangulari-ovatie, non carinatte, apice erecto, breviter 

 setuloso. Flores in axillis folioi-vnn 1-2. Pedicelli 8-4 mm. 1., ad 

 apicem valde incrassati. Calyx ad \ fissus ; laciniie ea. 1 mm. longie. 

 Petala fere 8 nun. longa ; lamina oblonga, 1'6 mm. longa ; nnguicula 

 1'8 mm. longa ; ligula ca. 2 mm. longa, paulum supra medium plicata 

 et reflexa, sinu gibboso, apice bilobuhita. Frceolus stamineus calyce 

 ])aulo brevior. Stigmata capita ta. Dru])a 1'8 cm. longa, 2-2-5 nun. 

 lata, lineari-oblonga, curvata. 



Hah. Peckham Woods, Clarendon, 2500 ft. alt. Harris, 11,208 ! 

 Jn Herb. Bot. Dep. Jamaica. 



This species resembles E. iiicrassatum O. E. Schuk in the 

 tliickened pedicel. 



SOME NEW SPECIES OF SEDUM. 



By K. Lj.oyu Pi{ae(jek. 



Ix the course of a revision of the genus Sediim as found in 

 cultivation, undertaken for the Poyal Horticultural Society, a few 

 new species have been unearthed from among the chaos of wrongly- 

 named plants which characterize the Stonecrops in our gardens. 

 Although the genus as a whole is a ditticult one, the majority of 

 the species are tolerably easily diagnosed ; but there remain one or 

 two intricate groups and al.^o seme polym()r])hic species, and the 

 j)lants found in cultivation include man}' of these. The result is a 

 hoi)ek'ss confusion in gardens and a wealth of erroneous names — 

 largely nowina iiuda — for foinis of *S'. alhmn^ S. rrJJfwtun, *S'. rvpesire, 

 >V. auupcialu))i^ ^. Aizoon, S. apurium, S. roKmm, and to a less extent 

 among some other species. The confusion has been no doubt assisted 

 by the fact that these plants dry so badly tliat reference to herbaria 

 is often futile unless careful and miiiutr diaciuosis is resorted to. 



