Census of Cultivated Indigenous Plants. 



2 35 



P. subcordata, Benth. Munson, 

 1889. 



P. Virginiana, Linn. * (Eng. 

 1724.) 



Purshia. Species single. 



P. tridentata, DC. Gill. 1881. 

 (Eng. 1826.) 

 Pyrus. About 50 species ; 9 in this 

 country. 



P. Americana, DC. * (Eng. 

 1782.) The Rowan or Euro- 

 pean mountain-ash is fre- 

 quently sold as this species. 



P. angustifolia, Aiton. (Eng. 

 (1750.) 



P. arbutifolia, Linn. f. * (Eng. 

 1700.) 



P. coronaria, Linn. * (Eng. 

 1724.) In cultivation as an or- 

 namental plant. 



P. Ioensis, Bailey. Sparingly 

 in cultivation for its fruit. 



P. nigra, Sargent. * Heretofore 

 confounded with P. arbutifolia. 

 (See Garden and Forest, iii. 

 416, 440.) 



P. rivularis, Dougl. * Of recent 

 introduction. 



P. sambucifolia, Cham. & Schl.* 



P. Soulardi, Bailey.* Culti- 

 vated some 20 years in the 

 form of the Soulard crab. 

 Rosa. Many species; 17 enumer- 

 ated in our region. 



R. Arkansana, Porter. * 



R. blanda, Aiton. * (Eng.) The 

 Rosa blanda offered by most 

 nurserymen is probably not 

 the American species. 



R. Californica, Cham. & 

 Schl. Orcutt, 1891. 



R. Carolina, Linn. * (Eng. 

 1726.) 



R. foliolosa, Nutt. Wool, about 

 1889. 



R. gymnocarpa, Nutt. * (Eng.) 

 R. humilis, Marsh. (Eng.) 

 R. lucida, Ehrh. * (Ensr. 1724.) 

 R. nitida, Willd. * (Eng. 1807.) 

 R. Nutkana, Presl. * 

 R. pisocarpa, Gray. Gill. 1881. 



(Eng. 1877.) 

 R. setigera,Michx. * (Eng.) This 



is well known as a climbing 



rose. 



Rubus. Between 100 and 200 spe- 

 cies; 22 in this region. 



R. Canadensis, Linn. (Eng. 

 1811.) Introduced in 1886 or 

 1887 in the form of the Win- 

 dom dewberry. 



R. Canadensis var. invisus, 

 Bailey. First introduced from 

 1870 -75 as the Bartel dewberry. 



R. Canadensis var. roribaccus, 

 Bailey. Introduced from 1875- 

 80 as Lucretia dewberry. 



R. cuneifolius, Pursh. (Eng. 

 1811.) 



R. deliciosus, James. * (Eng. 

 1870. ) 



R. hispidus, Linn. G. & H. 1891. 

 R. leucodermis. Dougl. * 

 R. Nutkanus, Mocq. * (Eng. 

 1826.) 



R. neglectus, Peck. * Shaffer, 

 Philadelphia and other rasp- 

 berries belong to this. 



R. occidentalis, Linn. * (Eng. 

 1696.) The parent of the com- 

 mon garden black raspberries. 



R. odoratus, Linn. * (Eng. 

 1700.) 



R. spectabilis, Pursh. Gill. 1881. 

 (Eng. 1827.) 



R. strigosus, Michx. * (Eng.) 

 Parent of the Cuthbert and 

 probably other garden rasp- 

 berries. 



R. trfflorus, Richards. (Eng.) 



R. trivialis, Michx. Introduced 

 from 1884-1890 as Fairfax, 

 Manatee, Bauer and Wilson's 

 White dewberries. 



R. ursinus, Cham & Schl. Gill. 

 1881. 



R. villosus, Aiton. * (Eng. 

 1777.) The parent of the gar- 

 den blackberries. 



R. villosus var. albinus, Bailey.* 

 In cultivation for a few years 

 in forms of the " White black- 

 berry." 



R. villosus var. frondosus, Torr.* 

 In cultivation as Wilson, Jr., 

 and perhaps under other 

 names. 



Spirsea. About 50 species, of which 



we have 8. 

 S. Aruncus, Linn. *. 

 S. betulgefolia, Pall. Gill. 1881. 

 S. discolor, Pursh. * 

 S. discolor, Pursh., var. ariae- 



folia, Wats. * (Eng.) 



