150 UNIVERSITY OF MISSOURI STUDIES [292 



187. GILLENIA Moench [PORTERANTHUS 

 Britton], Bowman's-root. 



464. G. stipulacea Nutt. [P. stipulatus (Muhl.) Britton]. 

 Wild ipecac. 



Common in thickets and open places in woods, especially 

 on hilltops: some plants with monstrous pods on elongated 

 stipes were found in an old road near Grindstone creek, 

 1903. 



New York and Michigan to Missouri and Kansas; Geor- 

 gia to Louisiana and the Indian Territory. 



188. PYRUS (PIRUS) Tourn. IMALUS Juss.]. 

 Pear. Apple. 



465. P. communis L. Common pear. 

 Occasionally adventitious along roadsides, etc. 

 Asia and Europe, thence to all temperate lands. 



466. P. Malus L. \M. Mains (L.) Britton]. Common apple. 

 Thickets and roadsides; not infrequent. 



Asia and Europe, thence to all temperate lands. 



467. P. angustifolia Ait. [Af. angustifolia (Ait.) Michx.]. 

 Wild crab apple. 



Copses and open places in woods; scarce. 

 New Jersey to Illinois and Kansas; Florida to Louis- 

 iana. 



with a pinkish tinge, the calyx and pedicels densely stellate-pubescent; 

 follicles usually 4, rarely i, 3 or 5, glabrous and shining when mature. 

 Stream-banks; common. 



Michigan; Kent County, near McCord's (F. P. Daniels); Ionia 

 County, Easton Township (F. P. Daniels). 



B. Pubescence simple, or none. 



1. Follicles 2-4, pubescent. 



P. intermedius (Rydb.) Daniels [<9. intermedius Rydb.]. 



2. Follicles mostly 5, glabrous. 



P. opulifolius (L.) Maxim. [O. opulifolius (L.) Kuntze: 



S. opulifolius L.: N. opulifolia (L.) Benth.]. 



It is with a feeling of protest that these stellate forms of Physocarpus 



are described as new species, but the limitation of P. opulifolius (L.) 



Maxim, by recent authorities to the more glabrate forms, seems to leave 



no other recourse. 



