HENRIQUEZIA OF SPRUCE. 297 



A single specimen was gathered by Mr. Spruce, in June 1854, in woods along the 

 Guiainia, or Upper Uio Negro, above the confluence of the Casiquiare. 



3. Henriquezia nitida, Spruce, MS. ; foliis longe oblongis obtusis crasso-coriaceis 



nitidis, venis vix prominulis, calycis 4-partiti laciniis subovatis acutis hnbricantibus, 

 corolla extvis sericco-villosa. 



Arbor .30-pedaIis, ramosissima. Folia (an constanter ?) ternatim verticillata, 8-10 poll, longa, 2-3 poll, 

 lata, basi angustata, utrinque viridia et nitida, costa utrinque prominula ; venje tamen primarije parum 

 conspicuaj et non piominentes. S(ipu/a> lineari-lanceolatae, poilicares, rigidae, persistentes. Paniculte 

 rami ternatim verticillati, dichotome cymosi, cano-tomentosi. Calycis limbus usque ad ovarium 

 divisus ; lacinife 5 lin. longas, toraentosae, multo latiores quam in H. verticillata, marginibus imbri- 

 cantibus. Corolla sesquipoUicaris, rosea maculis nonnullis cinnabarinis notata, intus preeter lineam 

 pilorum flavicantium glabra, extus moUissime sericeo-villosa, fauce latiore quam in H. verticillata. 

 Frucius ignotus. 



Collected by Mr. Spruce in October 1854, on the banks of the Casiquiare, and distri- 

 buted under the number 3690. 



4. Henriquezia oblonga, Spruce, MS. ; foliis anguste oblongis obtusis subcoriaceis 



opacis subtus pallidis, venis vix prominulis, capsula suborbiculari. 



Possibly a variety of the IT. nitida ; but the specimens of the one being in flower only, 

 of the other only in fruit, I do not think it safe to unite them, as the leaves do not qmte 

 agree. In the IT. oblonga they are scarcely 6 inches long, although with longer petioles 

 than in H. nitida, not so thick, and not nearly so shining, and much paler underneath. 

 The stipules are nearly the same. The capsule is of the same woody consistence as in 

 H. obovata, but not broader than long, being about 3 inches each way ; it is marked with 

 a similar slightly-arched transverse line, being the scar left by the limb of the calyx. . 



A small tree of about 18 feet in height, with few spreading branches ; frequent on the 

 Rio Atabapo, an affluent of the Orenoco near the mouth of the Casiquiare. There were 

 only two or three specimens gathered by Mr. Spruce in June 1854, and numbered 3702. 



EXPLANATION OP THE PLATES. 



Tab. LII. 



Henriquezia verticillata. 



Fig. 1. Calyx and style. 



Fig. 2. Corolla cut open. 



Fig. 3. Ovary, transverse section. 



Fig. 4. Ovary, vertical section. 



Fig. 5. The same shortly after flowering. 



VOL. XXII. 2 E 



