484 Mr. J. Miers on some genera of the Icacinacese. 



minutis notatis, costa nervibusque prominentibus, rufescenti- 

 bus, margine uudulato revolutis, petiolo longiusculo^ crasso, 

 canaliculate ; racemo spicato, axillari et terminali ; floribus 

 paucis, alternis, albis^ imo 2-bracteatis, et cum pedicello bre- 

 vissimo articulatis, petalis ovato-liuearibus, extus adpresse 

 pubescentibus, intus 5-locellatis, staminibus sequilongis. — 

 Guiana Batava. — v. s. in herb. Hook, et Mus. Brit. Surinam 

 {Hostman^ no. 1209). 



This species appears to me distinct from the former, the leaves 

 being much broader with a thicker and much longer petiole, and 

 a more lengthened and more branching panicle; its leaves 

 measure 6| inches long, 3^ inches broad, on a fleshy petiole | inch 

 in length ; the panicle is 3^ inches long, composed of many di- 

 varicating branchlets. n^->l 



3. Poraqueiba sericea, Tulasne, loc.cit. p. 172; — excelsa, foliis 

 latissime ellipticis vel ovato-ellipticis, basi rotundatis, vel ab- 



lorupte breviterque in petiolum longum validum decurrentibus, 

 apice mucronatis, supra glabris, subtus pilis minutissimis 

 sericeo -pubentibus, nervis venisque prominulis ; panicula ra- 

 cemosa, axillari, cinereo-pubescente, folio breviore, floribus 

 approximatis, minoribus, imo bibracteolatis, et cum pedicello 

 brevissimo articulatis, in alabastro ovato-globosis, petalis ovato- 

 Janceolatis, imo 2-locellatis staminibus duplo longioribus, intus 



ag^pilis brevibus patulis albo-lutescentibus vestita. — Brasilia 

 sequatoriali, ad Egam Fluv. Nigri. (Popp. pi. no. 2597). 



The leaves of this species are much larger and proportionally 

 broader than the former, being from 6 to 10 inches long, 4 to 

 7 inches broad, on a petiole 1^ to If inch in length. The 

 axillaiy panicle is from 4 to 6 inches long, and the flowers are 

 barely 2 lines in length. 



Pennantia. 



The true affinity of this genus, established by Forster in 1773, 

 has not hitherto been sufficiently well understood. Jussieu 

 placed it among the genera of indeterminable position, hinting 

 at the same time its probable relation with Canarium, a genus 

 belonging to the Terebinthacea. Bartling considered it should 

 be referred to the Euphorbiacece. Sprengel and Meissner held 

 it to be an anomalous genus of the Terebinthacece. A. Richard 

 (Yoy. Astrol. 368) pronounced its station to be quite uncertain. 

 Endlicher in his ' Prodromus ' of Norfolk Island plants, placed 

 it in Rhamnacea, a view confirmed by Lindley in his ' Introduc- 

 tion to Botany.' Endlicher again, in his ' Genera Plantarum,' 

 arranged it among the doubtful genera of that family. Reisseck 

 subsequently gave an elaborate description of its characters, when 



