Ranunculacece.'] 
MEXICO. 
275 
1. Woodwardia joro/j/em, n. sp. ; fronde triangulari-ovata pinnata, pinnis lato-lanceo- 
latis acuminatis profunde pinnatifidis basi valde insequalibus cuneatis brevi-petiolatis 
supra proliferis subtus prsecipue ad costam paleaceo-squamosis, laciniis lanceolatis acutis 
reticulatim venosis superne serrulatis. (Tab. LVII.) — W. orientalist Sw, Syn, Fil. p. 
117 e?315 Hab. Loo Choo. 
This is very distinct from any Woodwardia we have had the opportunity of seeing. It can scarcely be the 
W. orientalis of Swartz (a native of Japan) of which the pinnae are described as sinuato-pinnatifid. The 
reticulation on the laciniae is certainly more copious in our plant than in any other of the genus ; but its 
most remarkable feature arises from the copious scaly buds, each bearing a young frond, which appear on the 
upper side of the laciniae, and always from a certain point of the nervation, in the upper angle of the costal 
nerves, occasioning a corresponding depression on the under side. Our specimens are almost entirely desti- 
tute of sori. 
Tab. LVII. Woodwardia prolifera. Fig. I. Upper side of a proliferous lacinia ; fig. 2. Under side of do. 
1. Davallia ferruginea. Cav — supra, p. 257. 
Ord. LXVI. ALG.®. 
1. Dictyota spinulosa, n. sp. s fronde lato-lineari dichotoma spiraliter torta mem- 
branacea olivaceo-fusca minute reticulata disco utrinque margineque spinulosis. — Hab. 
Loo Choo. 
Frond about a span long, flat, membranaceous, many times dichotomous, J an inch broad near the base, 2 or 
3 lines broad in the ultimate shoots, the margins and the whole disc on both sides beset with spinous pro- 
cesses of the texture of the frond. The reticulation is very minute and peculiar, consisting of broadish 
transverse bands and more crowded, and far slenderer longitudinal lines, both equally visible in the dry 
and in the moist slate. 
MEXICO. 
When no habitat is mentioned, the specimens are understood to have been collected at Tepic. We must 
remark, how'ever, that there seems to have been a considerable mixture of the specimens collected at Loo 
Choo and Bonin with those of Mexico, the same species occasionally occurring in both packets. Thus nearly 
all the specimens of what we have called Euonymus Japonicus and Elaocarpus photiniafolius, are in the 
Mexican collection ; and on the other hand, we found a bad specimen of Gordonia Lasiantlms among the 
Loo Choo collection, although we thought it unnecessary to notice it. 
Ord. I. RANUNCULACE^. Juss. 
1. Clematis sericea. H. B. K. Nov. Gen. 5. p. 37 ; De Cand. Prod. \. p. 5; Schlecht. 
in Linn. 5. p. 209, et 6. p. 416. 
