52 MICHIGAN ACADEMY OF SCIENCE. 



176. CRATAEGUS, Lin. Haw; Thorn Apple. 



463. Crus-Galli, Lin. Belle Isle thickets, etc. Common. 



464. punctata, Jacq. With the preceding. Frequent. 



465. coceinea, Lin. Thickets on Belle Isle. Frequent. 



466. macracantha, Lodd. With the last. Rare. 



467. mollis (T. & G. ) Sclieele. Thickets on Belle Isle, etc. Common. 



468. tomentosa, Lin. With the last. Common. 



177. PRUNUS, Lin. Plums and Cherries. 



469. Americana, Marsh. Plum. Belle Isle woods. Frequent. 



470. Pennsylvanica, Lin. f. Cherry. Near Palmer Park. Frequent. 



471. Virginiana, Lin. Choke Cherry. Belle Isle thickets. Rare. 



472. serotina, Ehrh. Black Cherry. Near Linden Park. Rare. 



FAMILY 48. LEGUMINOS^. Pea Family. 



178. BAPTISIA, Vent. 



473. tinctoria (Lin.) R. Br. Wild Indigo. 



474. leucantha, T. & G. These species of Wild Indigo are found near 



Linden Park; the first is rather common; the latter rare. 



179. CROTALARIA, Lin. 



475. sagittalis, Lin. Rattle-box. Near Linden Park. Rare. 



180. LUPINUS, Lin. 



476. perennis, Lin. Wild Lupine, Frequent near Palmer Park. 



477. polycarpus, Greene. A Pacific Coast species. A waif of ballast 



grounds at Detroit. 



181. MEDICAGO, Lin. 



478. sativa, Lin. Alfalfa, Lucerne. Ballast grounds. Rare. 



479. lupulina, Lin. Black Medic. Nonesuch. Waste places on Belle Isle, 



etc. Common. 



480. denticulata, Willd. Ballast grounds. Rare. 



182. MELILOTUS, Lam. Sweet Clover. 



481. alba, Desv. White Melilot. Waste grounds. Common. 



482. Melilotus-ofiicinalis (Lin.) Trifolium Melilotis-officinalis Lin. Sp. PI. 



765:1753. Yellow Melilot. With the last; also on Belle Isle. 

 Common. 



183. TRIFOLIUM, Lin. Clover. 



483. agrarium, Lin. Hop Clover. Near Linden Park. Rare. 



484. pratense, Lin. Red Clover. Grassy places on Belle Isle, etc. Common. 



485. hybridum, Lin. Alsike Clover. Roadsides on Belle Isle. Common. 



486. repens, Lin. White Clover. Grassy places on Belle Isle, etc. Common. 



487. furcatum, Lindl. 



488. depauperatum, Desv. The last two species are waifs from the Pacific 



Coast. 



184. AMORPHA, Lin. 



489. canescens, Pursli. Shoe Strings, Lead Plant. Near old race-course. 



Rare. 



185. ROBINIA, Lin. 



490. viscosa. Vent. Locust. Detroit. Rare. 



186. ASTRAGALUS, Lin. 



491. Carolinianus, Lin. Milk Vetch. Shores of Belle Isle. Rare. 



187. MEIBOMIA. Fabric. Tick-trefoil. 



492. grandiflora (Walt.) 0. K. 



493. paniculata (Lin.) 0. K. 



494. Dillenii (Darl.) 0. K. 



495. Canadense (Lin.) O. K. All these species of Tick-trefoil, except the 



last, which is scarce, are common in the woods on Belle Isle. 



