Obolaria. GENTIAN" ACEtE. 127 



9. HALiENIA, Borkli. {Julm HaJen, who wrote of Kamtschatka plants.) — 

 Low herbs (of N. Asia and America) ; witli opjjosite leaves, and small terminal 

 and axillary often panicled cymes of usually 4-merous flowers ; the corolla whitish, 

 bluish, or yellowish. Occasionally or in some flowers the spurs or nectariferous 

 gibbosities are wanting or nearly so. 



H. deflexa, Griseb. Annual, 6 to 18 inclics high : radical leaves obovate or spatulate 

 and petioled ; uauline obloni^-lancuohite to ovate, acute, O-o-nerved (an inch or so long) : 

 sepals lanceolate or spatulate and acuminate : corolla dull whitish or purplish, o or 4 lines 

 long ; the lobes triangular-ovate and acute ; spurs deflexed or obliquely descoiuling, tliick- 

 isli, considerably shorter than the corolla. — Gent. 324 ; Hook. Fi. ii. (57, t. lo-j. Sivertia 

 corniculata, IMichx. Fl. i. 07, not L. S. dijlcxa. Smith in Rees. Cycl. -i'. Michauxiana, Rcem. 

 & Sell. S^'st. vi. 130. — Damp and cool woods, N. Maine and New York to Lake Superior 

 and northern Kocky Mountains, Laljrador, &c. 



Var. Brentoniana, a depressed form, with i-ather shorter and thicker spurs. — //. 

 ZJ/Y/i/o^/rt^rt, Griseb. 1. c. ; Hook. 1. c. t. 150. — Newfoundland and Labrador. II. hcteraiitha, 

 Griseb. I. c, & Hook. 1. c. 1. 156, also Newfoundland, appears to be nearly the same, with 

 some corollas s^jurless. 



H. Rothrockii, Gray. Annual, a span or two high, loosely flowered : leaves linear : 

 pedicels slender : sepals linear-lanceolate : corolla bright yellow, 4 or o lines long ; the 

 lobes ovate ; spurs divaricate and slightly ascending, shorter than the corolla. — Proc. Am. 

 Acad. xi. 84 ; Rothrock in Wheeler Rep. t. 21. — Arizona, on Mount Graham, Rothrock. 



10. BARTONIA, Muhl. {Prof. Bmjamln Smith Barton, of Philadelphia, 

 one of the earliest teachers of botany in the U. 8.) — Small and fllii'orm annuals 

 or biennials, of Atlantic U. S. ; with hbroits root, simple or panicidately branch- 

 ing stems, leaves reduced to subulate ap[)ressed scales or bracts^ and small pedun- 

 culate scattered flowers with white corolla. — Willd. in N. Schrift. Berl. iii. 144 

 (1801) ; Torr. Fl. 18o ; Benth. & Hook. Gen. ii. 818. Ceutaurella, Michx. PI. 

 i. 97, 180.'). Andrewsia, Spreng. Syst. i. 428. 



B. tenella, Muhl. A span to a foot high, rather rigid : fiowcrs racemose or raccmose- 

 panicled, barely 2 lines long : lobes of the yellowish-white corolla oblong, little longer 

 than the calyx (sometimes twice as long) : ovary 4-angled and the cell somewhat cru('i- 

 form. — Willd. 1. c. ; Gray, Man. ed. 5, 38!). Saijina Virrjinica, L. Centaurella paniculata, 

 Michx. 1. c. 1. 12, fig. 1. C. autumnulis, Pursh, Fl. i. 100 ; Griseb. 1. c. Centaurium autumnalc, 

 Pers. Syn. i. 137. Andrewsia autumncdis, Spreng. 1. c. Centaurella Musvri, Steud. Nom. ; 

 Griseb. in DC. Prodr. ix. 121, an occasional form, with leaves or scales and branches mostly 

 alternate. — Open woods, Newfoundland to Wisconsin and Louisiana; flowering late. 



B. Verna, Muhl. A span high or less, corymhosely or raceniosely 1-9-flowered, the stem 

 weaker or less rigid : lobes of the white corolla obovate-spatulate, 3 or 4 lines long, very 

 obtuse, thrice the length of the calyx : ovary compressed. — Centaurella verna, Michx. 1. c. 

 fig. 2 ; Griseb. 1. c. C. vernalis & C.astivalis, Pursh, 1. c. Centnurhun vernitm, Pers. 1. c. A»- 

 drewsla verna, Spreng. 1. c. — Bogs, S. Virginia to Florida and Louisiana; flowering in early 

 spring. 



11. OBOLARIA, L. (OiMos, a small Greek coin, from the rounded 

 leaves.) — Gray, Chloris, 21, t. 3. — Single species. 



O. Virginica, L. Herb a span or less in height from a tufted fibrous perennial root, of 

 dull purplish-green hue and rather fleshy texture, simple or sparingly branched above : lower 

 leaves reduced to obtuse loose scales ; upper ones cuncate-obovate, about half inch long 

 and wide : flowers usually in threes and nearly sessile in the axils and terminating the stem 

 and branches, white or purplish, 4 lines long, produced in spring. — Spec. ii. 032 ((Jronov. 

 Virg.) ; Darl. Fl. Cest. ed. 1, 21, t. 2 ; Bart. Fl. Am. Sept. iii. t. 90; Router in DC. Prodr. 

 xi. 45; Gray, 1. c, & Man. ed. 5, .390. Orohanr.he Vinjiniana, etc., Moris. Hist. iii. 501, sect. 

 12, 1. 16, fig. 23 ; Pluk. Aim. t. 209, fig. 6. — Moist woods. New Jersey to Illinois and south 

 to Georgia and Texas. 



