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o wards the base, : 

 abruptly towards the blunt or 

 subacute apex, with glands at the 

 base. 3-5-ribbed, with elongate 



main rib, with sparse irregular 



Upper leaves alternate, floating, 

 subcoriaceous or membranous, 

 very long stalked, rarely sessile, 

 elliptical-lanceolate, with glands 

 at base of petiole, lamina fenes- 



Stipules slender, scarious, blunt, 



Upper leaves alternate, opposite 

 beneath peduncles and forks of 

 branches, floating, subcoriaceous 

 or membranous, short-stalked or 

 sessile, oblong-lanceolate, glan- 

 dular at base, lamina fenestrate. 



Stipules slender, scarious or her- 

 baceous, blunt, almost truncate. 



very short, apparently 



green 



e whole plant oln 



Wi, 



t olive-gr< 



Tbe above brief descriptions include all the essential characters 

 of each form; it will be seen that the stipules are described as 

 blunt, not acute, as described by other writers, and the remarkable 

 (jhiwU at the lm.se of ear/, laf are noticed. The description of the 

 drupelets is copied from Mr. Bennett's account in Hooker's Student's 

 Flora, ed. 3. From the beautiful drawings of these made by Mr. 

 Bennett, I incline to think the drupelets are not fertile, but are 

 rather of tbe nature of those produced on such hybrid forms as P. 

 decipiens and /'. „it>,is. This is a matter which requires further 

 investigation ; but practically the British forms of P. lanceolatus are 

 barren, and I believe no ripe drupelets have ever been noticed. 



The differences between the French and British plants are so 

 slight that, if compared with different states of such forms as P. 

 variant gathered from the same rootstock at different seasons, they 

 are scarcely varietal ; yet the habit of each is somewhat different, 

 and may possibly be constant. For this reason I am not prepared 

 to sink the name rimlaru entirely, but on present evidence to call 

 the Montemerle plant, P. lanceolatus var. eivulaeis. 



Much importance has been given, by those interested in the 

 .-; : 



lanceolatus has only occurred in the British Isles; and also the 

 local distribution in these islands has seemed to present difficulties 

 that could not be readily explained. Perhaps the true solution of 



relation P. land f alius bears to the other British species of Pot a- 



