LINACEAE 417 



2. X. corniculata (L.) Small (Oxalis repens Thunb. ; 0. corniculata 



L.). In ballast about seaports. Also in Trop. Am. and 

 Europe. 

 Occasional as a weed. 



3. X. Bushii Small (Oxalis Bushii Small). Dry soil, N. S. to S. 



Dak., Col. and Ga. 



N. Y. Valley Stream, L. I. 



Pa. Luzerne Co. 



4. X. rufa Small (Oxalis rufa Small). Woods and moist soil, 



Mass. to Ga. and Minn. 



Known, in our area, only from Stroudsburg, Pa. 



5. X. filipes Small. (Oxalis filipes Small). In woods along streams. 



N. Y. to Tenn. and Ga. 



N. Y. Copake Falls, Columbia Co. 



6. X. Brittoniae Small (Oxalis Brittoniae Small). In woods: 



Mass. to Mo. and Fla. 



Conn. New Haven, Hartford and Litchfield counties. 



N. Y. Common on L. I. and S. I., local northward, but not 



definitely known from the Catskills. 

 N. J. Rare in Monmouth, Ocean and Mercer counties, local 



northward; not in the pine-barrens. 

 Pa. In Monroe Co., unknown elsewhere. 



7. X. cymosa Small (Oxalis cymosa Small). Woods and fields, 



Ont. to Mich., Fla. and Tex. 



Common throughout the range, except in the pine-barrens. 



LINACEAE 



Stigmas introrse and more or less elongate; sepals glandless. I. Linum. 



Stigmas terminal and capitate; sepals, at least the inner ones, with 



marginal glands. 2. Cathartolinum. 



I. Linum [Tourn.] L. 

 I. L. usitatissimum L. In waste places and in fields: through- 

 out cultivated America. Native of Europe. 



Common as a weedy escape in most parts of our area. 

 Linum angustifolium Huds. has been collected as a waif near New York. 



2. Cathartolinum Reichb. 



Styles distinct. 



Sepals entire at maturity. 



Outer sepals 2-2.5 mm - l° n g at maturity; stems panicu- 



lately branched. I. C striatum. 



28 



