10 p H A NE R G A M I A. 



they grow. The smooth and turgid achenia are abruptly subulate 

 with a very slender and straight style. 



■*■*■** # Sandwicenses. 



\ 12. Ranunculus Hawaiensis, Sp. Nov. 



B. Ursutus; caule valido erecto superne ramoso; pedunculis plurimu 

 corymbosis; foliis biternatisectis divisionibus primaries longe petiolu- 

 latis, ramealibus biternatipartitis trisectixve, segmentis omnium cuneato- 

 oblongis lanceolatisve incisis dentatis; sepalis ovatis margine lato 

 hyalino lirnbatis retusis extus hirsutis petala obovata (flava) mb- 

 cequantibus; aclieniis Icevibus late semiomtis compressis stylo conspicuo 

 subulato apice recurvo vel rectlusculo acuminatis in capitulum subglo- 

 bosum aggregatis. 



Hab. Hawaii, Sandwich Islands, in water-runs (also collected by 

 Douglas). 



Stems 3 feet or more in height, erect, thick, fistulous, terete, branch- 

 ing, clothed, as well as the branches, petioles, &c, with short and 

 spreading hirsute pubescence. Leaves clothed throughout with a 

 similar pubescence ; the radical and principal cauline biternately com- 

 pound; the primary divisions on partial petioles of an inch to 3 

 inches in length ; the secondary divisions narrowed at the base into 

 short and usually margined petioles or nearly sessile, cuneate or 

 oblong, 2-3-cleft; the lobes oblong or sublanceolate, incised and toothed. 

 Main petioles dilated and partly sheathing at the base. Upper cau- 

 line and rameal leaves simply ternate or trisected, with the divisions 

 laciniate-toothed and incised; the floral commonly undivided and 

 lanceolate. Peduncles an inch or 2 inches long, often somewhat 

 fascicled or umbellate-corymbose on the summit of a common peduncle 

 or branch, forming altogether an ample and many-flowered compound 

 corymb. Flowers smaller than those of R. acris, although the fruits 

 are larger. Sepals rather persistent, hairy outside, very concave, 

 thin and membranaceous, somewhat coloured, several-nerved near the 

 centre, ovate-orbicular in outline, including the broad and delicate 

 hyaline margin, retuse at the summit. Petals yellow, obovate, fur- 



