FARWELL ON THE FLORA OF DETROIT. 55 



FAMILY 59. ACERACE.E. Maple Family. 



209. ACER, Lin. 



539. saccharium, Lin. Silver maple. Low grounds. Rare. 



540. rubrum, Lin. Red Maple. Moist woods on Belle Isle. Frequent. 



FAMILY 60. BALSAMIXACE.E. Jewel-weed Family. 



210. IMPATIEXS, Lin. 



541. biHora, Walt. Toiiclihme-not. Moist grounds on Belle Isle. Common. 



Order 21. Rham>"ales. 



FAMILY 61. RHAMNACE.E. Buckthorn Family. 



211. CEANOTHUS, Lin. 



542. Americanus, Lin. New Jersey Tea. Linden Park. Common. 



FAMILY 62. VITACE.E. Grape Family. 



212. VITIS, Lin. 



543. \iilpina. Lin. Riverside Grape. Common on Belle Isle. 



213. PARTHEXOCISSUS, Planch. 



544. quinquefolia (Lin.) Planch., var. lacinata. Planch. P. vitacea, (Knerr.) 



A. S. Hitchcock. Internodes of the stem and branches 2'-4' long ; 

 leaves glabrous, or sparcely short-pubescent ; tendrils mostly without 

 terminal adhering disks ; aerial roots none. Moist grounds on Belle 

 Isle. Frequent. 



545. var. hirsuta (Donn.) T. & G. Ex. Planch. Aerial roots numerous : 

 high-climbing: internodes of the stem and branches ^ to % inch 

 long ; leaves pubescent on both sides, and pilose on the mid-vein 

 underneath; tendrils none. Moist woods on Belle Isle. Frequent. 



Order 22. Malvales. 

 FAMILY 63. TILIACE.E. Linden Family. 



214. TILIA, Lin. 



546. Americana, Lin. Basswood. Moist woods Belle Isle. Frequent. 



FAMILY 64. MALVACE.E. Mallow Family. 



215. ALTH.F:A, Lin. 



547. officinalis, Lin. Marshmallow. In waste places, etc. Frequent. 



216. MALVA. Lin. 



548. rotundifolia, Lin. Mallow. Roadsides, etc., on Belle Isle and else- 



where. Common. 



549. crispa, Lin. Waste places, etc. Common. 



217. ABUTILOX. Gsertn. 



550. Abutilon (Lin.) Rusby. Indian Mallow. Waste places, etc. Common. 



218. HIBISCUS, Lin. 



551. Trionum, Lin. Venice Mallow. With the last. Frequent. 



Order 23. Pakietales. 



FAMILY 65. HYPERICACE^. St. Johns-Wort Family. 



219. ASCYROX. Lin. 



552. hypericoides, Lin. St. Andrew's Cross. Woods on Belle Isle. Rare. 



