CATALOG OF PLANTS. 95 



415. Lepidium apetalum ^^illd. Apetalous peppergrass. — A frequent 



^vee(l about villages. 



416. Lepidium campestre (L.) R. Br. Field cress. — Along the railroad 



south of Caseville. 



417. Capsella bursa-pastoris (L.) Medic. Shepherd's purse. — A com- 



mon weed in villages and adjacent fields. 



418. Camelina sativa (L.) Crantz. Gold-of-pleasure. — Along the 



railroad south of Caseville. 



419. Cakile edentula (Bigel) Hook. American sea rocket. — Common 



in sand along the lake shore. "Not observed back of the 

 outer row of dunes and usually on the side facing the lake." 

 Davis. 



420. Brassica arvensis (L.) Ktze. Common mustard. Charlock. — 



A f refluent weed in villages and adjacent fields. 



421. Brassica campestris L. Ruta-baga. — An occasional weed along 



railroads and in villages; an escape from cultivation. 



422. Conringia orientalis (L.) Dumort. Hare's-ear mustard. — Along 



the railroad south of Caseville. Apparently rare. 



423. Sisymbrium officinale (L.) Scop. Hedge mustard. — A common 



weed about villages. 



424. Sisymbrium altissimum L. Tumble mustard. — Near the grain 



elevator. at. Caseville. . 



425. Sisymbrium cheiranthoides L. Wormseed mustard. — A weed in 



villages, al)out fishery buildings and in adjacent fields. 



426. Radicula nasturtium aquaticum (L.) Britten and Rendle. True 



water cress. — Abundant in a creek near Port Austin. 



427. Radicula palustris (L.) Moench. Marsh cress. -^Frequent in 



wet open places. 



428. Radicula armoracia (L.) Robinson. Horseradish. — Frequent on 



damp ground as an escape. 



429. Dentaria diphylla Michx. Two-leaved toothwort; crinkle-root. 



—Not noticed but found in the herbarium of Miss Elma 

 Kelley at Harbor Beach and collected near there. No 

 doubt common on rich shaded ground throughout the sand 

 region. 



430. Dentaria laciniata Muhl. Cut-leaved toothwort. — Abundant on 



east side of Charity Island. Not noticed elsewhere. 



431. Cardamine bulbosa (Schreb.) BSP. Spring cress. — Occasional 



on wet springy ground. 



432. Cardamine douglasii (Torr.) Britton. Purple cress. — Common 



in. rich damp woods. 



433. Cardamine pratensis L. Cuckoo flower. — On border of a creek 



east of Port Austin. 



