448 
APPENDIX NO. XVIII. 
This form, of which I have only two specimens, is undoubtedly the 
R. hederaceo proximus of Giesecke. It has a great affinity with 
De Candolle’s R. aquatilis , var. hederaceus , R. hederaceus , Lam., not 
of Linn, (vide El. Frany. vol. iv. p. 894.) The stems are fistulous 
repent, with small fascicles of radical fibres at each node below the 
scape. No capillaceo-multifid leaves; they are all suborbiculur tripar¬ 
tite, on long vaginant petioles, 3-4 at the base of each peduncle; 
leaflets cuneate, with dilated crenate margins, each erenaturc having a 
blunt mucro. Scape thick, naked, one-fiowered, 3-3 1 inches high. 
Flower white, middle size, with five oval and concave sepals about the 
length of the petals. 
Disco and adjacent coast, 70°. 
2. R. glacialis, Linn. sp. plant, p. 777. D. C. Prodr. 1, p. 30. 
Torr. and Gr. 1, p. 16. 
North Proven, 72°. 
3. It. nivalis, Linn. FI. Lapp. p. 158—T. 8. D. C. Prodr. 1, 
p. 35. Iiook, FI. Dor. Am. 1, p. 17. Torr. and Gr. 1, p. 20. 
a. R. nivalis Linn. Leaves glabrous, on long ciliate petioles, some¬ 
what reuiform, crenato-lobate, lobes obtuse, more or less deep, equal or 
narrower at base, with conspicuous divergent veins. Cauline leaves 
sessile, palmate. Flowers rather large, deep yellow; petal oval-rounded, 
about twice the length of the calyx, which, as well as the peduncle, is 
covered with a thick, brown tornent. Root perpendicular, with nume¬ 
rous white and thick fibres, indicating a plant deeply rooted in mossy 
beds. 
Stations of Smith’s Sound, 78°-80°. 
ft. R. Br. in Parry’s first voy. app. p. 264. R. nivalis y var. Vahl., 
FI. Lapp, p. 157. R. sulphureus , Soland. in Phipps’ Voy. p. 202. 
Leaves cuneate, palmately lobed, lobes generally narrower at base. 
Flower pale yellow. 
Smith’s Sound Stations, 78°—80°. 
4.I have two very damaged specimens, closely allied, 
by the leaves, with the preceding variety, but widely different on other 
points, and which might be R. sabinii ) R. Br., collected on the shores 
of Melville Island in Parry’s first voyage. The radical leaves are 
cuneate, veined, ciliate, deeply 3-parted, with lateral partitions bifid, 
supported on long vaginant membranaceous petioles. Stem apparently 
two-flowered. Flowers pale yellow, smaller than the preceding. Sepals 
and peduncles covered with whitish hair. Petals partly destroyed, but 
seemingly narrower than in the above species. 
Grows in dry levels at Bedevilled Reach, 79°. 
