BicKNELL : Studies in Sisyrinchium. 341 



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■ 1896, IS tall and slender the numerous leaves nearly as long as the 

 stems, many of which bear a bracteal leaf near the top subtending 

 one or two peduncles. The plants were pale in color and the 

 more branched forms bore rather a dose resemblance to forms of 

 ,S. AtlantictinL 



In two or three of many specimens the bracts of the spathe 

 are very obscurely scabrous. 



The forms of the plant here referred to look remarkably differ- 

 ent from the type, but the extremes appear to intergrade and the 

 expediency of recognizing any of them as varieties does not clearly 

 appear from the material at present before me. 



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. Sisyrinchium campestre sp. nov. 



Closely caespitose, commonly 15-20 cm,, high (10-30 cm. or 

 more) erect, stiff, glaucous or glauccscent. Leaves half the height 

 01 the stem or longer, sometimes surpassing the stem, i-r.5 nim., 

 rarely 2 mm. wide, the edges smooth, the bases tinged with pale 

 dull purple: stem .5-1.5 mm. wide, narrowly wing-margined, the 

 wings finely closc-striate, often obscurely scabrous on the sides, 

 especially above, the edges smooth ; spathe pale dull purple to 

 gfeen, the bracts minutely roughened with somewhat glandulose 

 points to cancscently scabrous-puberulent, or sometimes glabrous, 

 primary bract 2.5-4.5 cm. long, narrowly attenuate, often setace- 

 ously slender, stiff and straight or slightly incurved, obtuse or 

 ^cute, surpassing the inner bract 1-3.5 c^-. the margins narrowly 

 hyaline below, not at all united-clasping at the base or but slightly 

 ^o ; base of inner bract usually rounding out rather abruptly from 

 the primary one, especiallv at full maturity, giving the spathe a 

 somewhat gibbous character, the bract 1.2-3 cm. long, narrowed 

 ^^ slenderly attenuate to the acute apex, the e^gQs noticeably 

 ^hite-hyaline ; interior scales commonly broader than in S. vmcro- 

 natum: flowers 4-9. pale blue to white; perianth delicate, 8-14 

 J^^ni. long; stamineal column 3-5 mm. high ; pedicels 10-16 mm. 

 ^ongr, usually not surpassing the inner bract and little spreadmg : 

 ^^apsules pale at maturity, 2-4 mm. high, trigonous-subglobose,^ 

 often depressed, and impressed at base but sometimes cuneate-obo- 

 ^^te. sparsely pubcrulcnt, minutely rugulose, sometimes also 

 venose-reticulated; seeds iitw in each cell, 1-1.25 in longer di- 

 ameter, irregularly obovoid-subglobose or oblong, somewhat 

 ^"^Sled, black, at full maturity, only fointly pitted umbihcate. 



Wisconsin to North Dakota, south to Louisiana, Oklohoma 



rocky 



Mexico, on pn 

 g in May and J 



