sciiomburgk's gutana plants, 113 



617. C. (Piparea) Javitensis, Humb. et Kunth DC. Prodr. 



V. ii. p. 51 — Gathered on the Rio Quitai'o, and in the expe- 

 dition to the Orinoco ; Sckomburgk, n. 592, and 996. 



618. C. (Piparea) densiflora, (sp. n.) ; foliis brevissime 

 petiolatis ovali-ellipticis breviter et late acuminatis obscure 

 crenatis utrinque glabris coriaceis nitidis impunctatis, floribus 

 axillaribus subsessilibus capitato-congestis dense pubescenti- 

 bus 12 — 15-antheris rarissime 10-antheris 5-fidis, stylo trifido. 

 — Arbor parva v. frutex elata. Hamuli juniores puberuli. 

 Folia 3 — 4-pollicaria. Stipules lanceolato-lineares, deciduas. 

 Flores albi, in axillis numerosi, fere omnino sessiles. Caly- 

 cis lacinia; ovato-oblonga?, obtusae, extus dense sericeo-pubes- 

 centes, intus glabriusculae. Stamina fertiiia calyce longiora, 

 glabra ; sterilia brevia, lineari-spathulata, villosa. Ovarium 

 villosulum. Stylus glaber, longitudine staminum, stigmati- 

 bus ad apices ramorum capitatis. — British Guiana ; Schom- 

 burgk, n. 143, and 386. 



619. C. (Piparea) laurifolia (sp. n.) ; foliis brevissime 

 petiolatis ovali-oblongis longiuscule acuminatis integerrimis 

 V. vix serrulatis utrinque glabris coriaceis nitidis impunctatis, 

 floribus axillaribus glomeratis dense pubescentibus 12 — 15- 

 antheris 5-fidis, pedicellis calyce vix brevioribus. — C. densi- 

 flora simillima et forte mera varietas, foliorum forma et flori- 

 bus pediceilatis diversa. — British Guiana; Schomhurgk, n. 140, 

 and 342. 



I have more or less examined, besides the above, eight 

 species belonging to the section Piparea^ viz : — C. Conimerso- 

 niana, St Hil., (which is Gardner's n.21, and is in Tweedie's, 

 and other Rio Janeiro collections); Gardner's 960, and 1144 

 from Pernambuco, 1268 from Alagoas, and 1526 from Ceara; 

 Cuming's 1274 from Panama, and two other Brasilian species 

 in Pohl's collection. I have however only seen the fruit in 

 four of these species. 



BlXACE^. 



620. Bixa Orellana L — DC. Prodr. v. \.p. 259— « Wild 

 Arnotto." — Banks of Rivers, British Guiana; Schomhurgk^ n. 

 170. 



Journ. ofBot. Vol. IV. No. 27, Augusty 1841. p 



