CATALOGUE OF PLANTS. 89 



694, C. Crus-galli L. Cockspur Thorn. 

 Common in low ground. June 1-8. 



C95. C. intricata Lange. 

 Dry sandy soil; occasional. 



Lanibertou Lake region; Ijltiii's oi" Plaster Creek, near the Paris 

 Town Hall; bluils west of the D. G. H. & M. Ry. Junction. 

 A low shrub with slender spines, leaves smooth and reddish 

 ■when young, cymes few-llowered, calyx-lobes and bracts glandu- 

 lar, blooms a little later than C. coccinea. 



696. C, inacracantha Lodd. 

 Frequent in moist soil. May 27-June 5, 



Leaves with appressed hairs above, densely pubescent beneath, 

 rarely coniiued to the veins; fruit small and of a rich glossy red. 

 Our plant is probably C. succulenta of Schrader which Prof. 

 Sargent now considers merely a variety of C. macracantlia. 

 Our finest thorn. 



697. C. mollis Torr. tt Crray. 

 Common. Mid-May. 



The largest of the thorns, often 25 feet high and 12 inches iu 

 diameter. 



698. C. punctata Jacq. 

 Common. June 4-12. 



699. C. rotundifolia (Ehrh.) Borck. 



A bushy shrub, leaves thick, usually incised; spines long and 

 slender; cymes few-llowered. It is the companion of C. intrica- 

 t<i and blooms at the same time. 



700. C. tomentosa L. 



Alow shrub; occasional. June 10-18. 



The plant is often unarmed. It retains its fruit during winter. 



PYRUS L. Pear. Apple. 



701. P. Americana DC. American Mountain Ash. 

 Sorhiis Americana Marsh. 



In thickets; occasional. June. 



Probably spontaneous from seeds dropped by birds. 



