216 Hliodora [Novembkr 



This very abundant species has some resemblance to R. sefofius, 

 enough perhaps to justify placing it in that class. Its red stem nearly 

 naked the second year, flimsy delicate appearance, and early flowering 

 <'asily distinguish it from that s])ecies. 



There are in this section many other forms which may be considered 

 as hybrids, mutants, variants or aberrant forms according to the 

 botanist's way of looking at these subjects. 



lU'UUS msi'iDus X HETOSUs. These are mostly prostrate or nearly 

 so but they do not like R. hi.spidus branch, tip, nor preserve their 

 leaves through the winter, while they are 5-foliate. Frequent. No 

 two alike. 



RuBUS HISPIDUSX SEMIEKECTUS. Rare, found in but two or three 

 ])laces. 



RuBUs HispiDUS X iJiFOHMisriNUs. Tliis was found in but one 

 place and both the species were growing near. 



Several other very distinct forms grow here. One is a dwarf "high" 

 blackberry 1 to 2 feet high, remarkably fruitful, growing in the woods. 

 Another belongs to the Seiosics' class, while a third though common 

 fruits so little as to give little chance to study it. Should they prove 

 to be abundant and widespread names will be in order. What the 

 writer regards as the essentials of a species is not merely tlistinct 

 characters, but the form must be sufficiently abundant and wide- 

 spread. Sports frequently have shar])er characters than any species. 



SurPLEMENTARY NoTES ON THE TuREE PRECEDING PaPERS. 



During the present season the writer has done a good deal of work 

 on Rubus in Rhode Island and in Massachusetts especially in the 

 southeastern part. As some of the ])lants described in these papers 

 as new species have been found in additional localities, it seems 

 worth while to ap])cnd the following notes in regard to them: — 

 RKhus Annulrlanus is abundant on the highway from Marblehead to 

 Swamj)scf)tt. R. recurvicanlis is also abundant in hedges in the neigh- 

 borhood "Cow Fort" in Marblehead. R. geophilm occurs in the 

 northern part of New Bedford and in Plymouth near Manomet. R. 

 jylicaiijolius was found in Burrillville, R. I., and in Palmer and Mun- 

 son, IMass. R. nrenicolus was very plenty in pastures in Stoughton 

 and sev<>ral miles away in Canton. R. semierecfiifi occurred abun- 

 dantly by the road from AVestvale in Concord to the Wayside Itm in 

 Sudbury, and in Arlington near the standpi]>e. R. Ariindclanus and 



