PAPAYERACEJ5 



131 



dilated and amplexicaul base, glaucous at first, then a pale 

 green. 



No. 1. Pinnatisect, with three oblanceolate-linear, obtuse seg- 

 ments. 



No. 2. Similar or with four to five segments, that is, one or two 

 011 each side of the leaf. 



No. 3. Pinnatisect or slightly bi-pinnatisect, with the secondary 

 divisions on the anterior side of the primary ones ; segments slender, 

 lanceolate-linear. 



No. 4. Bi-pinnatisect, with lanceolate-linear, obtuse or rather 

 acute segments. 



Adlumia cirrhosa, Eaf. (fig. 154). 



Primary root tapering, brittle, succulent, yellowish, with a few 

 lateral rootlets. 



Hypocotyl erect, terete, succulent, glabrous, reddish, 7-16 mm. 

 long. 



Cotyledons petiolate, glabrous, pale green ; petioles horizontal, 

 slender, slightly channelled on the upper side, subdilated and con- 

 nate at the base, 16 mm. 

 long ; lamina ovate, acute, 

 faintly five-nerved, pendent, 

 recurved, 6 mm. long, 4*25 

 mm. broad. 



Stem developed the 

 second year to 12 feet or 

 more, slender, climbing by 

 means of tendrils. 



Leaves simple, ternati- 

 sect, radical and cauline 

 (the second year), alternate, 

 exstipulate, petiolate, gla- 

 brous, pale green above, 

 nearly glaucous beneath, 

 thin and delicate, marked 

 with fine, more or less fork- 

 ing, ascending or suberect veins ; petioles succulent, brittle, chan- 

 nelled on the upper side, much dilated at the base and obtusely 

 subcarinate. 



Nos. 1 and 2. Ternate ; lateral segments ovate, cuspidate ; ter- 

 minal one elliptic, cuspidate. No. 2 in robust specimens biternate. 



No. 3. Biternate or in robust seedlings triternate. 



No. 4. Triternate. 



K2 



PIG. 154. Adlumia cirrhosa. Half nat. 



