FLOWERING FLANTS. — DR. HOOKER. 
9 
Enumeration of the 
THE “ Antarctic, 
Plants hitherto collected in Kerguelen Island by 
” “ Challenger,” and “ British Transit of Venus ” 
Expeditions. 
I. — Floiceri»g Vlants, Ferns, Tjycopodiacece, and Churacece. 
By J. B. Hooker, P.B.S. 
1. Ranunculus crassipes, llook.f. Fl. Antarci. 221, t. 81. 
Christmas Harbour, Observatory and Swain’s Bay, Iloyal Sound (a fonn witli 
petioles 5-7 inches long). 
I have nothing to add to what I have said of this species in the Antarctic Elora, 
beyond that I can hardly doubt its being a derivative form of the Euegian It. biter- 
natus, Sm., with which it agrees in habit and its tliick-wallcd beaked carpels, but 
differs chiefly in its robustness and simple leaves. It. biternatas has been found by 
IMoseley in Marion Island, ivliere it presents every character of the American plant. 
2. Ranunculus trullifolius, llook.f. Fl. Antarct. 220, t. 82 A. 
In streamlets and lakes, Iloyal Sound, Swain’s Bay, Betsy Cove ; Moseley, 
Eaton, Kidder. (Euegia and the Ealkhmds). 
Glabcrrimus, caulibus prostratis radicantibus. Folia longe crasse pefiolata, obovato- 
oblonga trulliformia v. fere oibicularia, apicc obtuse 3-5-dentata v. lobata, carno- 
sula, nervis obscuris ; auriculis pctiolaribus mcmbranaco-dilatatis. Flores ad nodes 
solitarii, brevissime pedicellati. Sepala 3, orbicularia, concava, membranacea. Ee- 
iala 3, sepalis sequilonga, obovato-oblonga v. spatbulata, 3-nervia, nervo medio 
medium versus fossa nectarifera instructo. Stamina pauca. Carpella numcrosa ; 
matura cuneiformia, compressa, dorso incrassata, stylo gracili subulato. 
I described this species in the Elora Antarctica from very imperfect specimens 
gathered by myself in the Ealklands in mid-winter, along ivith the very similar It. 
hydrophilus, Gaud., and from a careful examination of the remains of the only flower 
found, which resembled in petals, sepals, and stamens those of its neighbour, I 
supposed it to be closely allied to it. Good specimens gathered by Cunningham in 
the Straits of Magalhaens, and by Eaton in Kerguelen, prove that it belongs to another 
section of the genus, differing from It. hydrophilus in the usually trimerous perianth 
and the long style of the flattened ripe carpels. It. trullifolius is, in fact, referable 
to St. Hilaire’s genus Casalia (now reduced to Itanunculus) , and its nearest ally is 
R. bonariensis, Poiret (B. Kunthii Trian. and Flanch.), which differs by its ovate 
crenate leaves, long-peduncled flowers, and absence of style in the ripe carpels. 
R. hydrophilus, again, is probably a form of R. adscendens, St. Hil. (iC humilis, 
