WESTERN TROPICAL AMERICA. 103 
sex linearibus acutis.—Z. calyculatus, Hook. et Arn. Bot. Beech. p- 294. non DC, — Tiger 
Island. 
Similis LZ. calyculato DC., sed rami tetragoni, folia majora, seepe 4-5-pollicaria, corymbi ampliores, et flores 
ante anthesin longius acuminato-rostrati, 
349. Loranruus (Oscillatoria) obovatus, sp. n., glaber, scabriusculus, ramis subteretibus 
dichotomis verticillatisve, foliis subsessilibus obovatis obtusis basi rotundatis cuneatisve venosis, 
pedunculis opposite ramosis terminalibus tenuiter puberulis, ramis trifloris floribus pedicellatis, 
bractea cupuliformi ovario paullo breviore, corolle sesquipollicaris obtuse vix puberule petalis sex 
linearibus.—Common on several trees, especially Mimose, near Guayaquil. 
Folia 1-2 poll. longa, 3-1 poll. lata, subcoriacea, venis pinnato-reticulatis parum prominentibus. Pedun- 
culi nunc ad apices ramorum solitarii, ramulis per paria distantibus 3-4 lin. longis, pedicellis 2-3 lin. longis ; 
nunc in axillis superioribus vel ad apices ramorum complures, breves, ramulorum paribus approximatis, pedicellis 
abbreviatis. 
Rvusiacezm. 
350. Posoquerts decora, DC. Prod. v. 4. p. 375.—Isle of Gorgona. 
Frutex glaberrimus, ramulis junioribus tetragonis demum teretibus. Folia petiolata, late ovata, 6-8 poll. 
longa, 4-6 poll. lata, brevissime acuminata, margine subundulata, basi rotundata, coriacea, supra nitida, costa 
media venisque primariis subtus magis quam in affinibus prominentibus. Petioli 6-10 lin, longi. Stipulee late 
ovate, obtuse, 8-12 lin. longee, coriaceo-foliacew. Corymbus 12-16-florus, terminalis, pedunculatus, pedunculo 
tamen foliis superioribus breviore. Pedicelli floriferi 3-4 lin. longi, post anthesin elongati. Calyx 2 lin, longus, 
tubo adnato turbinato, limbo brevissime et obtusissime 5-dentato. Corolle tubus rectus, 5-6-pollicaris, gracilis, 
summo apice paullo dilatatus; limbus in alabastro obliquus, hinc gibbus, obtusus ; lacinie 7-8 lin. longe, 
oblongee. Styli lobi lineares. 
Although the geographical station of De Candolle’s plant (French Guiana) be 
so distant, his character agrees perfectly with our specimens. They also answer 
as to foliage with Kunth’s description of Tocoyena macrophylla, but the flowers of 
our plant are not racemose, and are decidedly those of a Posoqueria. 
351. Ranpra (Oxyceras) glomerata, sp. n., ramulis glabris apice bispinosis, foliis subsessilibus 
obovatis glaberrimis basi cuneatis, floribus ad apices ramulorum sessilibus pluribus congestis, 
corolla parvee fauce pilosa.—Atacames. 
Frutex affinis R. latifolia, sed folia et flores minora. Ramuli breves, crassi. Spine divergentes, conics. 
Folia in ramulis floriferis abbreviatis fasciculata, semipollicaria vel paullo longiora, supra ee poem 
sterilium non vidi. Flores magnitudine Ribesios grossularia, 3-5 ad apices ramulorum brevis — 
Calycis tubus minutus, limbus cyathiformi-campanulatus, brevissime 5-dentatus. Corolla a, wel 14 lin. 
longc ; lacinie lanceolate, acuminate, 1} lin. longe, crassiuscule, estivatione valvats bie leviaeithe imbricata, 
intus dense pilose. Anthere lineares, e tubo breviter exsertw. Stylus corolla longior, apice bilobus. 
352, Bertier angustifolia, sp. n., foliis oblongis acuminatis, venis ramulisque villosis, stipulis 
