BicKNELL : Ferns and flowering plants of Nantucket 17 



S. aniinhiata Sen saul. cless. n. 26— 2y. 



S. aciiininata oboi^ata Ser. ess. 13, 



^. aqttatica Smith engL bot, t. 1437, ex Borrer in litt.! 



Berne, rives de TAar. 1824." 



This species was not found in cultivation anywhere on Nan- 

 tucket and its occurrence amid the native vegetation in the undis- 

 turbed surroundings of Tom Never's Swamp seems very noteworthy. 



* Salix fentandra L. 



Three trees 8 to 12 feet high in a low field below the '* Cliff"; 

 a group of more than thirty trees along the edge of a meadow 

 near Lily Pond, the larger about eighteen feet high and smaller 



F 



ones of a later generation among them. These trees had doubt- 

 less been planted originally at both stations and though now 

 growing in natural surroundings have shown little disposition to 

 become spontaneous. Some fertile catkins remained June 20. 



* Sallx purpurea L. 



Established at a few places In low meadows west of the town ; 

 a group of trees on the border of a damp field at 'Sconset 



* Salix cordata Muhl. 



Typical Salix cordata is found in abundance at Washing Pond, 

 forming dense masses four to six feet high along the gravelly 

 shore, the stems and branches often spreading and procumbent in 

 the sand. It occurs also in Trot's Swamp. Not found in flower 

 or fruit. 



* 



* Salix rigida Muhl. 



Frequent in the neighborhood of Millbrook Swamp, sometimes 

 forming close clumps eight or ten feet high ; Trot's Swamp. Some 

 fertile catkins remaining June 10. 



Salix discolor Muhl. 



Except in the '* Woods," where it is frequent, this is found only 

 on the eastern side of the island; in the southeastern quarter from 

 Tom Never*s Swamp to Gibbs' Pond it is rather common and it 

 occurs also in Polpis, inhabiting boggy spots along the northern 

 side of Saul's Hills. A ^\x\^^ tree at Watt's Run was fully twelve 

 feet high and bore unusually large and thin, long-petioled leaves. 



