HITCHCOCK — PLANTS OF AMES, IOWA. 5 I 7 



Morus rubra, L. Spec. 



Lowland woods ; scarce. 



Bottom land of Skunk river; Squaw creek, and woods near cemetery (Prof. 

 Pammel). 



Urtica gracilis. Ait. Hort. Kew. — U. dioica, Ait., var. procera, 



Wedd. in DC. Prod. xvi. 1. 



Lowland woods and waste places: infrequent. 

 Lapoktea Canadensis, (L.) Gmel. Bot. Voy. Uran. 1826. — Urtica 



Canadensis, L. Spec. 

 Low woods ; frequent. 

 Pilea pumila, (L.) Gray, Man. 1st ed.— Urtica pumila, L. Spec. 



Lowland woods in moist places: frequent. 

 ParietaFvIa Pennsylvania, Muhl. in Willd. Spec. iv. 

 Dry banks in wjods: not uncommon. 

 PLATANACE.E. 



Platanus occtdentalis, L. Spec. 

 Lowland woods ; not uncommon. 



JUG LAND ACEM. 



Juglans ctnerea, L. Spec. 2d ed. 



Lowland woods; not uncommon. 

 J. nigra, L. Spec. 



Lowland woods: not uncommon. 



Hicoria. ovata, (Mill.) Britt. Torr. Bull. xv. 1888. — Juglans 



ovata. Mill. Diet. — Carya alba. Nutt. Gen. 

 Upland woods: abundant. 

 H. minima, Marsh. Britt. Torr. Bull. xv. 1888. — Juglans alba 

 minima. Marsh. Arbust. — Carya amara. Nutt. Gen. 

 Lowland woods; abundant. 



CUPULIFERAV. 



CobyIjUS Americana, Walt. Fl. 



Upland woods and thickets; abundant. 

 Ostrya Vibginiana, Mill.) Koch, Dendr. ii. 2.—Carpinu8 Vir- 



ifiniana. Mill. Diet. iv. — O. Virgiyiica. Willd. Spec. iv. 

 Upland woods; frequent. 

 Quercus alla. L. Spec. 



Upland wood* : abundant. 



A large tree with light colored bark and smooth twigs ; leaves obovate. usually 

 nearly equally lobed all around, the smuses shallow or extending nearly to the 

 midrib. 



lCROCARPA, Michx. Hist. Chenes, 1801. 



Woods: abundant. 



A large tree with deeply furrowed bark and rough or corky-winged twigs, grow- 

 ing more commonly on the bottom-lands ; leav ■ rhomboidal, usually with 

 the lower half lobed, and the upper half or terminal lobe merely sinuate. 



