Krigia. COMPOSITE. 411 



natificl, uppermost closely sessile, often seemingly opposite. Sk. ii. 207; 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 cccspitosa, Raf. 

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

 Carolina to Texas aud 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. TATi'iglitii. 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. KK/lG-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. PI. 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 : paleae 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 palete, some- 

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

 Trans. Am. Phil. Soc. vii. 427; Torr. & Gray, Fl. ii. 468. K. nen-osa, Hook. Ic. PI. iii. 

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

 length of the palese. Prairies of Arkansas and Texas ; first coll. by Nutt all. 



2. EUKRI'GIA, 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 palere, 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, dicfiotoma, & Caroliniana, Nutt. Gen. ii. 127. K. leptophi/l./a, DC. Prodr. 

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

 t. 12; Walt. Car. 193; Michx. Fl. ii. 88. Hi/oseris Caroliniana, Walt. 1. c. ? Sandy 

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



