ROSACE.E 



497 



FIG. SZl.Poterium 

 Sanguisorba. Nat. 

 size. 



base, hairy in the young stage, glabrous, or nearly so, in the adult ; 

 stipules almost wholly adnate to the petiole and membranous with 

 a minute free tip in the seedling, foliaceous in 

 the adult, more or less ciliate at the margin. 



No. 1. Pinnately trifoliolate ; leaflets petio- 

 lulate, rotund, incise-serrate, alternately penni- 

 nerved and reticulate with the nerves running 

 directly into the subacute serratures lateral 

 ones subcordate at the base. 



No. 2. Trifoliolate; leaflets shortly and 

 broadly oblong, with the lateral ones subcordate 

 at the base. 



Ultimate leaves imparipinnate ; leaflets 

 numerous, alternate or opposite, varying even 

 on the same leaf, rotund, cordate at the base and 

 overlapping the rachis, and also one another 

 when opposite, subacutely incise-serrate, with 

 minutely mucronate serratures, the terminal 

 one smaller and shorter than the lateral ones, all 

 decreasing in size from the apex of the leaf 

 downwards, and often having small green pinnatifid segments near 

 the base representing the free ends of the stipules. 



Rosa berberidifolia, Pall (fig. 822). 



Primary root very long, tapering gradually downwards, with a 

 few very short slender fibrils or none. 



Hypocotyl tapering insensibly into the root. 



Cotyledons oblong, obtuse, entire, rather thick and fleshy, min- 

 utely glandular-ciliate, otherwise glabrous, pale green, shortly 

 petiolate, I'l cm. long including the petiole. 



Stem suffrutescent, flexuose, glandular-pubescent and prickly ; 

 prickles mostly in whorls immediately beneath the insertion of the 

 leaves where the internodes are developed ; 1st to 5th internode 

 inclusive undeveloped ; 6th 2 mm. long ; 7th 1 mm. 



Leaves simple (hi specimen sketched), cauline, alternate, 

 exstipulate (or stipules reduced to glands), shortly petiolate, 

 glandular-ciliate, otherwise glabrous, equally glaucous on both sur- 

 faces ; petioles very short, 1-2 mm. long, dilated at the base and 

 amplexicaul. 



No. 1. Cuneate, three-toothed at the apex. 



No. 2. Cuneate, five-toothed at the apex. 



No. 3. Similar. 



No. 4. Cuneate-obovate, six-toothed. 



E E 



