Krigia. COMPOSITE. 411 



natifid, uppermost closely sessile, often seemingly opposite. — Sk. ii. 267; DC. 

 Prodr. vii. 78 ; Torr. & Gray, Fl. ii. 466. 



A. humilis, Ell. 1. c. Peduncles naked, or rarely with some obscure glandular-bristly 

 hairs under the head : this in fruit only 2 lines high : corollas pure yellow, little longer than 

 involucre : akenes oblong-obovate. — DC. 1. c. ; Torr. & Gray, 1. c, in part. A. lyratum, Nutt. 

 Jour. Acad. Philad. vii. 71, & Trans. Am. Phil. Soc. n. ser. vii. 424. Serinia ccespitosa, Eaf. 

 Fl. Ludov. 149, cited in DC. 1. c. 261, should be either this or the next. — Open ground, S. 

 Carolina to Texas and Arkansas. 



A. gracilis, DC. 1. c. Sometimes slender and strict, not rarely more robust than the pre- 

 ceding, often some bristly hairs on the stem and lower leaves : peduncles usually glandular- 

 hispid some way below the head ; this commonly 3 lines high in fruit : corollas orange, con- 

 spicuously exserted, twice the length of the involucre : akenes rather thicker and obtuser at 

 apex, sometimes an obscure vestige. of pappus ! — A. humilis, Nutt. Trans. Am. Phil. Soc. 1. c, 

 not Ell. — Rocky prairies, &c, Texas; first coll. in a very slender form by Berlandier. 

 Grows with the preceding, keeping distinct. 



A. W riglrtii. Resembling slender and narrow-leaved form of the preceding (such as Ber- 

 landier's original specimens) : rather diffuse : heads equally small : akenes larger and thicker 

 (over half-line long), little contracted at either end, and with comparatively large areola 

 (yet less than the full breadth of the akene), this bordered by obscure vestige of pappus. 

 Possibly a hybrid between A. gracilis and Krigia occidentalis. — E. Texas, Wright, in fruit. 



211. KRlG-IA, Schreb. (David Krig, or Krieg, an early collector in 

 Maryland and Delaware.) — Low herbs of Atlantic U. S., glabrous or somewhat 

 hispidulous ; with small or middle-sized heads of yellow flowers, terminating 

 slender naked peduncles or scapes ; these not rarely glandular-hispidulous at 

 summit: fl. in spring or summer. — Gen. PL 532, Benth. & Hook. Gen. ii. 507. 

 Krigia & Cynthia, Don ; Torr. & Gray, Fl. ii. 467, 468. 



§ 1. Cymbia, Torr. & Gray, 1. c. Acaulescent annuals : bracts of the invo- 

 lucre 5 to 8, oblong-lanceolate, in fruit becoming broader and firmer, erect and 

 navicular-carinate, with a conspicuous midnerve, or sometimes 2-3-nerved : akenes 

 turbinate, mostly 5-paleaceous and 5-aristate. 



K. occidentalis, Nutt. Scapes a span or more high, commonly glandular-hispidulous, at 

 least toward the summit : leaves obovate to lanceolate, entire, lyrately lobed or pinnatifid : 

 heads 2 or 3 lines high : akenes. transversely rugulose : paleas of the pappus conspicuous, 

 rounded-obovate ; bristles or rather awns alternating with these and over the stronger angles 

 of the akene sometimes equalling it in length, sometimes not surpassing the palese, some- 

 times (var. mutica, Torr. & Gray) obsolete or wanting. — Jour. Acad. Philad. vii.,104, & 

 Trans. Am. Phil. Soc. vii. 427 ; Torr. & Gray, El. ii. 468. K. nervosa, Hook. Ic. PI. iii. 

 t. 227, & K. bellioides, Scheele in Linn. xxv. 257, normal form, with pappus-awns double the 

 length of the palese. — Prairies of Arkansas and Texas; first coll. by Nuttall. 



§ 2. Eukkigia, Torr. & Gray, 1. c. Acaulescent and subcaulescent winter 

 annual ; bracts of the involucre 9 to 18, thin, remaining narrow and nearly nerve- 

 less, reflexed after the fall of the narrowly turbinate somewhat 5-angular akenes : 

 pappus of 5 to 7 (commonly 5) roundish short palese, and of as many alternating 

 nearly capillary long bristles. — Krigia, Schreb., &c. 



K. Virginica, Willd. Varying much in size ; often sparsely hispidulous : scapes 2 or 3 

 inches or at length a foot or more high, slender, not rarely caulescent below : leaves from 

 spatulate-obovate to lanceolate or linear, from few-toothed or entire to pinnately parted : 

 heads 3 or 4 lines high : pappus-bristles fully twice the length of the akene. — Spec. iii. 

 1618. K. Virginica, dichotoma, & Caroliniana, Nutt. Gen. ii. 127. K. leptophylla, DC. Prodr. 

 vii. 88, slender form. Hyoseris Virginica, L. Spec. ii. 809 ; Lam. Jour. Hist. Nat. i. 22, 

 t. 12; Walt. Car. 193; Michx. El. ii. 88. Hyoseris Caroliniana, Walt. 1. c. ? Sandy 

 ground, Canada to Florida and Texas : fl. from spring to autumn. 



