162 



Sisymbrium salsiigineiwi S. Wats. Bibl. Ind. 70. 1878. Not 



Sisymbrium salsiigineiim Pall. 1773. 

 Tlielypodium salsugiueum Robinson, Syn. Fl. i^ : 175. 1895. 



Dr. Robinson referred this species to Tlielypodium, but it lacks 

 the most characteristic feature of that genus, i. e., the sagittate 

 and cui-ved anthers. The flower and pod are almost exactly like 

 those of P. Thaliana. Prantl * refers the closely related Sisym- 

 brium salsugineuvi Pall, to Stcnophragma and the writer thinks 

 rightly so. He thinks, however, that the American plant is dis- 

 tinct from the Siberian, having smaller flowers and entire instead 

 of coarsely toothed basal leaves. The only characters in which 

 they do not agree with the typical Pilosellac are but trifling ones, 

 viz : the lack of pubescence and the clasping stem-leaves. 



A key to these species may here be added : 



Stem-leaves not auriculate- clasping or sagittate at the base. 



Annual. P- Thaliana. 



Perennial. 



Stems erect ; leaves thin, sparingly pubescent ; style about i mm. long. 



P. Novae- Angliae. 

 Stems decumbent at the base ; leaves thick, densely stellate ; style about 

 0.5 mm. long. P. Richardsonii. 



Stem-leaves auriculate-clasping or sagittate at the base. 

 Plants pubescent, biennial or perennial. 



Pod 2 mm. thick ; style obsolete. P. virgata. 



Pod about I mm. thick ; style 0.5 mm. long. P. stenocarpa. 



Plant glabrous, annual. P. glatua. 



New York Botanical Garden. 



THE MUSEUM AND LIBRARY OF THE STATEN IS- 

 LAND ASSOCIATION OF ARTS AND SCIENCES 



By Charles Louis Pollard, Curator 



The books and collections belonging to the Staten Island 

 Association of Arts and Sciences were moved on July 9 from 

 the Staten Island Academy, where they had been stored for the 

 last ten years, to Room 309 in the Richmond Borough Building, 

 which was assigned to the Association last November by the 

 Commissioners of the Sinking Fund. This room, occupying 



*Engl. & Prantl, Nat. Pflanzenfam, 3^: 192. 1891. 



