80 



ON SEEDLINGS 



cotyledons are connate by their edges, forming a tube obliquely 

 split at the top. The petioles of the cotyledons are more or 

 less connate in most species at the base ; they are united for 

 half their length in A. Coronaria, nearly to the top in A. 

 rupicola, and quite so in A. polyantha. In Anemone nemo- 

 rosa the petioles are completely sup- 



Connate petioles also occur in Trol- 

 lius, Delphinium nudicaule (fig. 137), D. 

 trollifolium, and in some other species 

 to the same extent as in Anemone poly- 

 antha. 



In Clematis recta the cotyledons are 

 fleshy and do not leave the seed. As 

 usual in such cases the first few leaves are 

 reduced to scales, 



Clematis recta, L., var. lathyrifolia (fig. 

 120). 



Primary root yellowish, with short lateral 

 rootlets. 



Hypocotyl short and tapering into the 

 primary root. 



Cotyledons petiolate, subterranean, and not 

 leaving the seed. 



Stem erect, terete, but becoming angular 

 above, glabrous; 1st internode (in sketched 

 specimen) short and hidden by remains or 

 sheaths of cotyledons ; 2nd 2 mm. long ; 

 3rd 6 mm. ; 4th 7 mm. ; 5th 18 mm. ; 6th 

 11-5 mm. 



Leaves compound in the adult plant, 

 simple in seedling stage, cauline, opposite, 

 exstipulate, petiolate, glabrous, green above, 

 subglaucous beneath. 

 The leaves of Nos. 1-3 pair inclusive bad fallen off ; as above 

 mentioned they are, as usual in such cases, quite small. 

 No. 4 pair, rotund-ovate, obtuse, entire. 

 No. 5 pair, rotund, obtuse, entire, sub-trinerved. 

 No. 6 pair, ovate, acute, entire, trinerved at the base. 

 Ultimate leaves (in this variety) bipinnate, leaflets lanceolate, 



FIG. 120. Clematis 

 recta, yar. lathyri- 

 folia. Nat. size. 



