272 THE WEST VIRGINIA FLORA 



P L A T A N A C E AE. 



PLATANUS L. 

 P. OCCIDENTALIS L. Sycamore. Buttonwood. 



All soils. Wood : at the mouth of the Little Kanawha 

 (Michaux). Common throughout the State. 



R O S A C E AE. 



OPULASTER Medic. 

 (Physocarpa Raf. 1836.) 



O. OPULIFOLIUS (L.) Kuntze. Nine-bark (Physocarpa o pull- 

 folia Raf.). 



Along streams, common. Monongalia : along the Monon- 

 gahela River. Webster : Upper Glade. Fayette : near Nutt- 

 allburg (Nuttall). Hardy : near Moorefield. Upshur : near 

 Buckhannon (Pollock). 



SPIRAEA L. 



S. CORYMBOSA Raf. Birch-leaved Meadow-sweet. (S. betuli- 

 Pall,), 



Rich mountain woods. Webster : near Upper Glade. 

 Hardy: near Moorefield (Gamble). 

 S. VIRGINIANA Britt. West Virginia Meadow-sweet. 



Discovered 1890 along the Monongahela River near Mor- 

 gantown. The following description is taken from Prof 

 Britton's account of the plant in "Bull. Torrey Club," Dec. 

 1890. 



"A glabrous shrub, the branches forming long wands, 

 erect or reclining, 1-4 ft. long. Leaves oblong or slightly 

 oblanceolate, thin, obtuse or short-pointed at the apex, round- 

 ed or cuneate at the base, i l / 2 to 2 in. long, 5-8 lines wide, 

 green above, pale beneath, entire or with a few low serrations 

 in the upper half ; petioles 2 lines long ; pedicels and pedun- 

 cles pale and glaucous ; flowers about 2-lines broad, in term- 

 inal compound corymbs 1-3 in. across; calyx teeth 5, tri- 

 angular, blunt, about the length of the short-campanulate 

 tube, distinctly glaucous; petals 5, white, ovate-orbicular, 

 obtuse; stamens 15-20, persistent; styles 5-6; follicles in the 

 specimens examined, 5-6, apparently sterile, included in the 

 persistent calyx." 



"On damp rocks along the Monongahela River, Morgan- 

 town, West Virginia, collected by Dr. C. F. Millspaugh in 

 flower, June 2Oth, 1890, and in apparently imperfect fruit 



