12 



PHANEROGAMIA. 



round and more or less incised, the lateral 2-3-lobed, the middle one 

 trifid. Leaves of the branches sometimes divided, commonly undi- 

 vided and almost sessile, serrate, ovate or oblong, an inch or two 

 long, and becoming smaller on the ultimate flowering ramifications. 

 Peduncles terminal and dichotomal, an inch long, or less, one-flowered. 

 Flowers (all on a far advanced plant) not larger than those of R. 

 recurvatus; the somewhat closed sepals and petals otherwise much as 

 in the preceding species. Mature achenia only a line kmg, ovate-lenti- 

 cular, compressed, margined much as in R. repens, smooth, tipped 

 with a small, straight or somewhat recurved, abrupt, subulate beak, 

 consisting of the persistent style. They form a globose head of only 

 a quarter of an inch in diameter. — This description is from the Maui 

 specimen. The poor specimen from the island of Kauai, indicated as 

 a variety, is more hairy ; the cauline leaves* more dissected, and the 

 divisions on elongated partial petioles ; in these respects approaching 

 the R. Eawaiensis, although very different in the fruit, &c. 



This species is readily distinguished from the preceding by its 

 weaker, reclining habit, less divided and much less hairy leaves, 

 smaller flowers, and, more definitely, by its carpels of less than half 

 the size, of a different shape, and abruptly tipped with a small and 

 short style, instead tapering gradually into a conspicuous beak. In 

 the fruit, as well as the foliage, it bears more resemblance to some of 

 the coarser North American forms of the polymorphous R. repens, 

 from which the small flowers with short petals should distinguish it. 



4. C ALT HA, Linn. 

 1. Caltha sagittata, Cav. 



Caltha sagittata, Cav. Ic. 5, t. 414 ; DC. Syst. 1, p. 307; Hook. f. in Bot. Mag., t. 



4056, & Fl. Antarc. p. 228. 

 C. multicapmlaris, Soland. in herb. Banks ; Forst. in Trans. Linn. Soc. 8, p. 324. 

 Psychrophila sagittata & P. andicola, C. Gay, Fl. Chil. 1, p. 50, t. 2. 



Hab. Orange Harbour, Fuegia. 



This curious and widely distributed Antarctic American species is 



