SCHOMBURGK's GUIANA PLANTS. 115 



Gathered in the expedition to the Orinoco, in 2" N. latitude; 

 Schomburgk. 



In Martin's Guiana collection is a third new species of the 

 interesting genus Maytia, which may be thus characterized : 

 ili. denticulata^ ramulis petiolisque pubescentibus, foUis ob- 

 longo-elh'pticis acuminatis margine remote calloso-denticula- 

 tis, petalis sex calyce duplo longioribus. 



Gardner's 310 from the Organ Mountains, is the Boca 

 serrataof the Flora Flumitiensis, a species oi Banara; his 1431 

 from Ceara is another Banara ; 1476 from Ceara is a 

 Prockia. 



HoMALINE^. 



623. Homalium Racoubea, Sw. — DC. Prodr. v. W. p, 253. 

 — Banks of Rivers, British Guiana; Schomburgk, n. 225. 



TURNERACE^. 



624. Turnera ulmifolia L. — DC. Prodr. v. iii. p. 346. — 

 British Guiana; Schomburgk^ n. 123, and 213. — Brazil; Twee- 

 die, Blanchet, n. 2613, Salzmann, 8fc. 



Gardner's n. 1026 from Pernambuco, is T. trionijiora ; 

 Sims, probably not distinct from T. cuneiformis Juss., which 

 again is very near the very variable T. tdmifolia. 



625. T. opifera Mart. Reise, 552.-~DC. Prodr, v. iii. p, 

 346, (ubi mendo typographico T. apifera dicitur.) — Dry 

 savannahs, Pirara; Schomburgk, n. 75 i. — Piauhy ; Gardner, 

 n. 2175. 



626. T. Guianensis, Aubl. — DC. Prodr. v. iii. p. 347. — Dry 

 savannahs, British Guiana; Schomburgk, n. 105. — The leaves 

 are generally nearly entire, and many are frequently without 

 glands. The flowers, as in others of the first or petioliflor- 

 ous group, are sessile on the petiole of the floral leaf, which 

 forms the third bract mentioned by Aublet, and has fre- 

 quently two glands at its base. I am therefore inclined to 

 think that T. pinifolia, St Hil., may be the same plant. 



Gardner's n. 2180, from Piauhy, appears to be 2'. capi- 

 taia, St Hil. ; Blanche t's 3097, from Villa do Barra, is T. 

 hermarmioides, St Hil., Gardner's 1247, from Alagoas, 1471, 



