246 PHANEROGAMOUS PLANTS. 



40°), is remarkably polymorphous, but is commonly identified with 

 care. Its erect habit, shiny and somewhat rigid leaves, and dark- 

 colored glossy elongated capsule, are characters which belong to all 

 its forms. 



7. CERASTIUM, Linn. 



1. Cerastium arvense, Linn. 



Hab. Puget Sound, and on the Kooskooskee River. — A dwarf state 

 of this species, with numerous cespitose viscidly pubescent stems, and 

 short crowded leaves, was collected about Puget Sound. 



8. MCEHRINGIA, Linn. 



1. MCEHRINGIA LATERIFLORA, Fend. 



Hab. Damp fertile places on the Kooskooskee River; Rev. Mr. 

 Spalding. 



2. MCEHRINGIA MACROPHTLLA. 



Moehringia umbrosa, Fenzl. in Lecleb. PI. Koss. 1, p. 372; Gray, PL Fendl. p. 13. 

 Arenaria macrophylla, Hook., Fl. Bor.-Am. 1, p. 102, t. 37 ; Torr. & Gray, Fl. 1, 



p. 182 ; Torr. Bot. Whippl. Rep. p. 69. 

 A. umbrosa, Ledeb. Ic. PI. Fl. Koss, t. 322. 



Hab. Puget Sound, Washington Territory. — In the Flora of North 

 America (1. c.) it was stated that Arenaria macrophylla, Hook., was 

 very near A. umbrosa, of Fenzl. There is now scarcely a doubt of 

 their identity. In removing the plant to the genus Moehringia we 

 adopt the earlier specific name of Hooker. In Ledebour's figure, 

 quoted above, the leaves are shorter and rather more obtuse than in 

 our Puget Sound specimens. 



