Sertum antillanum. VII. 399 
Obs. P. tenuiamentum C. DC. (e Trinidad) differt foliis anguste ovatis 
v. ovato-ellipticis, basi tota (utroque baseos :atere) rotundatis, postremo 
quoque membranaceis non areolatis, spicis 10—12 mm longe pedunculatis. 
— P. jamaicense (Griseb.) C. DC. quoque ad nostram speciem valde 
accedit. 
158. Ampelocera crenulata Urb., spec. nov. 
Verisimiliter fruticosa. Rami vetustiores teretes, lenticellis minutis 
orbicularibus obsessi; ramuli hornotini basi squamas incrassatas sub- 
rotundas v. obtuse triangulares gerentes, breviter et tenuiter pilosuli et 
hoc tempore jam lenticellosi. Stipulae liberae, inferiores oblongae, 
superiores lanceolato-lineares, 1,5—2,5 mm longae, deciduae. Folia 
alterna, 2—3 mm longe petiolata,` ovata v. ovato-elliptica, basi obtusa v. 
rotundata, apice acute acuminata, 4—7 cm longa, 2—3 cm lata, pennati- 
nervia, nervis supra prominentibüs et utrinque bene reticulato-anastomo- 
santibus, margine toto dense crenulata, crenulis apice incurvis, 
supra glabra nitida, subtus praesertim secus nervum medium brevissime 
et tenuissime puberula, tenuiter chartacea, in sicco nigrescentia. Flores 
(valde juveniles tantum visi) plures in cyathulum ad nodos ramorum 
vestustos .subsessilem v. usque 2 mm longe stipitatum cr. 2,5 mm 
crassum, 1,5 mm longum corticoso-induratum collecti, bracteis 2 ovatis 
acutis intus ad basin breviter pilosis inclusi. Alabastra ovalia pedicellata. 
Perianthii phylla 5 in aestivatione imbricata, glabra. Stamina 10 basi 
perianthii affixa; antherae subquadrato-orbiculares, longitrorsum birimosae. 
Ovarium superum glabrum; stigmata 2. 
Hab. in Cuba: Ramon de la Sagra no. 413. 
Obs. I. In cyathulo fila nonnulla rigida inter alabastra prodeuntia 
usque 5 mm longa inveniuntur; an pedicelli florum vetustorum delap- 
sorum? ; 
Obs. II. A. cubensis Griseb. ramis hornotinis minutissime patenti- 
pilosis, foliis 3—6 mm longe petiolatis, basi obsolete excisis, integris 
v. in specim. Doming. superne crenis parcissimis obsitis, squamis involu- 
erantibus liberis nec in.cyathulum connatis, perianthii segmentis 4 et 
verisimiliter aliis characteribus fioris fructusque differt; A. Ruizü Kl. 
(e Peru) foliis basi cuneato-angustatis parce dentatis v. subintegris, 
ovario dense tomentoso- recedit. 
Obs. III. Si nostra species re vera ad genus Ampelocerae pertineat, 
rateries melior in futuro demonstrabit. 
159. Ranunculus recurvatus Poir.; Fawc. et Rendle Flor. Jam. III p. 188. 
Fawcett und Rendle führen für Jamaica R. recurvatus Poir. mit 
leaves 3-cleft und eine Varietüt tropicus (Griseb.) Fawe. et Rendle (R. 
repens var. tropicus Griseb. Flor. p. I, R. cubensis Griseb. Cat. p. 1) mit 
leaves 3-foliate or 3-sect auf. Es ist mir ganz unverstündlich, wie sie 
dazu kommen, die beiden Grisebachschen Arten, die ganz verschiedenen 
Gruppen angehóren, miteinander zu identifizieren. Die erstere wurde 
von Macfadyen Flor. Jam. p. 3 als R. repens bestimmt mit der Be- 
merkung: This is evidently an introduced plant which has become 
