490 ON SEEDLINGS 



larger, ovate, serrate ; 4th pair below terminal leaflet small, ovate, 

 serrate ; basal pair minute, lanceolate. 



No. 7. Eleven-foliolate ; second pair below the terminal leaflet 

 very small, lanceolate, acute, entire. All the others serrate and 

 decreasing in size from the terminal one downwards. 



Ultimate leaves long, linear-lanceolate, imparipinnate with very 

 numerous leaflets, generally opposite in the upper part of the leaf 

 and alternate lower down, silky on both sides ; many of the upper- 

 most leaflets decurrent on the rachis by their posterior basal side, 

 oblong, serrate with long, subulate, acute, serratures ; middle ones 

 smaller and not decurrent ; lower ones gradually becoming smaller 

 towards the base, ovate and serrate, or the lowermost minute, lanceo- 

 late, acute, entire ; stipules hyaline and hairy, one-nerved, attached 

 for some distance to the petiole, with the free part oblong- subulate, 

 acute. 



Potentilla argyrophylla, Wall. 



Hypocotyl 3-5 mm. long, -5-'75 mm. thick, sparsely pubescent. 



Cotyledons similar to those of P. reptans, but rotund-oval. 



Stem herbaceous, deciduous, 



Leaves radical, toothed, lobed or ternate, or digitately five-folio- 

 late. 



No. 1. In weak seedlings trifid, in stronger ones five-fid, pale 

 green above, and sparsely hairy, subglabrous below and pale, 

 almost glaucous ; lobes obtuse, naucronate ; petiole terete, slightly 

 channelled above, sparsely hairy ; stipules adnate throughout their 

 length to the petiole, and sheathing the younger leaves. 



No. 2. Five- to seven-fid, palmately five-nerved. 



No. 3. Seven- to nine-fid, and similarly palmately nerved, more 

 densely clothed with long silky hairs. 



Ultimate leaves digitately three- to five-, rarely seven-foliolate, 

 pale green and silky above, felted with white tonientum beneath ; 

 leaflets obovate or more often oval, acutely and deeply serrate, basal 

 pair obtained by fission from the middle pair ; when seven leaflets 

 are present, the three terminal ones are ob tamed by fission of the 

 original one into three, and the uppermost pair are attached by their 

 whole width to the primary midrib. 



Eadical leaves with small scarious stipules adnate to the long 

 petioles for a great part of their length ; cauline leaves with gradually 

 shortening petioles, the uppermost almost sessile, and having large, 

 foliaceous, toothed stipules. 



