106 schomburgk's guiana plants. 



598. C. nitidum {sp. n.) ; caule albo-punctato, foliis obo- 

 vato-oblongis acutiusculis serratis basi angustatis, supra gla- 

 bris nitidis, subtus sparse pubescentibus, sepalis ovato-lance- 

 olatis ciliatis. — Folia minora quam in C. Aubletiii non acumi- 

 nata. Flores multo minores tenuiores. — British Guiana, 

 Schomburgk, n. 214, in the later sets. 



599. lonidium Ipecacuanha, Vent.— St Hil. Fl. Bras. 

 Merid. v. ii. p. 144. — Pombalia Itubu, DC. Prodr. v. i. p- 

 307 — Dry savannahs, British Guiana, Schomburgk n. 687. 

 French Guiana, Leprkur, Herb. Par. n. 113, Piauhy, Gard- 

 ner, n. 2039.— Gardner's n. 1241 from Alagoas, n. 2037, 

 2040, from Piauhy, and n. 2397, from Ceara, are all closely 

 allied to this species. 



600. I. oppositi/olium, Bcem. et Schidt. Syst. v. v. p. 395. — 1 

 /. angustifolium, Humb. et Kunth. — DC Prodr. v. i. p. 309? 

 Banks of the Rupunoony, Schomburgk, n. 121. 



Gardner's n. 313, from the Organ Mountains, and 

 n. 2038, from Piauhy, are also species oi lonidium. 



601. Araphirrox longifolia, Spr. Syst. cur. post. 99. — Spa- 

 thidaria longifolia, St Hil. — S. Isabel on the Rio Negro, 

 Schomburgk. French Guiana, Martin. Rio Janeiro, Gard- 

 ner, n, 8. 



602. AhoAQxsi flavescens, Spr. Syst. v. \.p. 806 Conohorea 



Passoura, DC. Prodr. v. i. p. 312.— British Guiana, Schom- 

 burgk, n. 119, and 336. 



603. A. piibijlora (sp, n.) ; foliis suboppositis ovato v. obo- 

 vato-oblongis acuminatis subserratis, racemis simplicibus, 

 rhachi ramulisque villosulis, pedicellis calyce longioribus, 

 squamulis stamineis nullis, filamentis antherarura loculis aequi- 

 longis, ovulis lateralibus. — Folia et habitus A. laxiflora. 

 Racemi densiores, vix folio longiores. Flores minores pedi- 

 cellis brevioribus. Petala extus pubescentia. Ovula m 

 quaque placenta plura. — Banks of rivers, British Guiana, | 

 Schomburgk, n. 513. 



604. A. brevipes (sp. n.) ; ramulis hispidis, foliis suboppo- ^ 

 sitis oblongis v. ovato-oblongis acuminatis subserratis, race- 

 mis simplicibus folio brevioribus, pedicellis calyce brevioribus, 



