p. 338): “This and the following (Ivesia tridentata) are 
among the species which go far to justify the views of 
Bentham and Hooker, and now also of Engelmann, who 
would combine Horkelia and Ivesia with Potentilla. T am 
reluctant to adopt this conclusion.” I have only to add 
that, since the publication of the “ Genera_Plantarum,” I 
have seen two species of Ivesia living in Western N. America, 
together with the one here figured at. Kew, and have recon- 
sidered the question of its generic validity after studying 
the rich Himalayan collections of Potentilla, and that my 
Opinion is confirmed as to the impossibility of maintaining it. 
I. ungwiculata was raised from seed sent by Dr. Gray, and 
flowered in July last. 
Desor. Clothed with soft-shining silky hairs. Stem a 
Span to a foot high, sparsely leafy, very slender, panicu- 
lately branched above. Radical leaves four to eight inches 
long, petioled, narrowly linear in outline, not half an inch 
in diameter, flexuous, appearing cylindrical from the closely- 
packed leaves, which are sessile, and consist of three sessile 
elliptic-lanceolate acute leaflets, of which the middle or 
longest is about a quarter of an inch long; rachis and 
petiole very slender, cauline leaves more sessile, with more 
scattered leaflets; stipules lanceolate. Flowers half an 
inch in diameter, pearly-white, in open panicles with 
slender spreading branches peduncles and pedicels ; bracts 
at the lower forks leafy, at the upper ovate-lanceolate. 
Calyz-tube narrowly ‘campanulate; ‘lobes ovate, acute, . 
spreading and reflexed. Petals rather longer than the 
calyx-lobes, rounded, with rather long narrow claws. 
Stamens on the throat of the calyx-tube, numerous, in two 
Series, filaments filiform; anthers minute. Carpels three 
to eight, minute, glabrous ; style filiform.—J. D. H. 
& 
Fig. i; leaf; 2, fl 
el Malaga ower; 3, thesame cut vertically 5 4, stamen ; 5, ovary and style: 
& 
*” 
