10 BOTANY OF THE VOYAGE OF THE SULPHUR. 
VITICER. 
15. Vrrex californica, sp. n., foliis subrotundis acutiusculis grosse dentatis integris, 3-5-lobisve 
basi profunde cordatis, supra glabris subtus ramulisque floccoso-tomentosis.—V. Caribea, Hook et 
Arn. in Bot. Beech. Suppl. p. 327 non DC.—Rio Sacramento. 
Folia latiora quam in V. caridva, nunquam acuminata, sinu baseos profundiore angustiore. Baccee parvee, 
nigree. 
ZYGOPHYLLACEE. 
16. Faconta californica, sp. n. ramis diffusis repetito-dichotomis, foliis trifoliolatis, foliolis 
ovato vel oblongo-lanceolatis articulatis margine nudis petiolo brevioribus.—Bay of Magdalena. 
a. Hindsiana, glabra, stipulis brevissimis. 
8. Barclayana, puberula, stipulis setaceo-spinescentibus petiolo paullo brevioribus. 
The long slender excessively-branched stem, the elongated petioles and 
small flowers, distinguish this as well from F. cretica as from F. chilensis, with 
both of which it has considerable affinity, but is more distinct from either than 
they are from one another. Perhaps, however, they may all be mere forms of one 
species. 
RHAMNACEE. 
17. Ruamnus oleefolius, Hook. Fl. Bor. Am. 1. p. 123. t. 44.—Rio Sacramento. 
18. Czanoruus thyrsiflorus, Eschsch.— Torr. et Gr. Fl, N. Amer. 1. p. 266.—Rio Sacra- 
mento, 
19, Czanoruus verrucosus, Nutt. in Torr. et Gr. Fl. N. Amer. 1. p. 267.—San Diego. 
BursERACER. 
20. Exapurtum rhoifolium, sp. n., (Plate VII.) ramis tortuosis, foliis trifoliolatis, foliolis ovatis 
obtusis crenatis utrinque pubescentibus, terminali basi in petiolum alatum contracto, lateralibus basi 
rotundatis, pedunculis fructiferis brevibus, 1-2-carpicis—Bay of Magdalena. 
Frutex ramis crassis teretibus rigide tortuosis glabris, ramulis brevibus, junioribus puberulis. Folia fere 
Rhois aromatici. Petiolus communis 1-1}-pollicaris, Foliolum terminale subrhombeum, 9-18 lin. longum, 
lateralia ovalia, minora, sessilia, Flores non vidi. Pedunculi fructiferi yix semipollicares, medio articulati, 
monocarpici vel ad articulationem in pedicellos duo monocarpicos divisi. Drupe ovoideo-globose, axi 4 lin. 
longo, cortice crasso carnoso bivalvi, putamine subangulato levi basi albido apice nigro biloculari, loculo 
altero vel utroque perfecto monospermo, altero sepe effeeto. Semen facie plana affixum, testa membranacea, 
cotyledonibus crassis trilobis plicatis, radicula brevi. 
Plate VIL fig. 1, fruit cut across; fig. 2, seed; fig. 3, embryo, all magnified. 
& 
