Obolaria. GEXTLIXACEJ:. 127 



9. HALENIA, Borkh. {Juhn Balen, who wrote of Kamtschatka plants.) — 

 Low herbs (of N. Asia and America) ; with opposite leaves, and small terminal 

 and axillary often panicled cvmes 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, to 18 inches high: radical leaves oborate or spatulate 

 and petioled ; cauline ohlong-lanceolate to ovate, acute, -S-o-nerved (an inch or so long) : 

 sepals lanceolate or spatulate and acuminate : corolla dull whitish or purplish, 3 or i lines 

 long ; the lobes triangular-ovate and acute ; spurs deflexed or obliquely dusoenJing, thick- 

 isli, considerably shorter than the corolla. — Gent. Oii ; Hook. Fl. ii. 67, i. I'jo. ^atrtia 

 conu'culata, Michx. Fl. i. 97, not L. .?. deflexa, Smith in Rees. Cycl. .S'. Michauxiana, Eoem. 

 & Sell. Syst. vi. 130. — Damp and cool woods, X. ilaine and Xew York to Lake Superior 

 and northern Rocky ilotmtains, Labrador, &c. 



Var. Brentoniana, a depressed form, with rather shorter and thicker spurs. — H. 

 Brentoniana, Griseb. 1. c. ; Hook. 1. c. t. 1-50. — Xewfoundland and Labrador. H. heterantlta, 

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

 some corollas spurless. 



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

 pedicels slender: sepals linear-lanceolate: corolla bright yellow, 4 or -5 lines long; the 

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

 Acad. xi. 81 ; Eothrock in Wheeler Rep. t. 21. — Arizona, on Mount Graham, Rothrock. 



10. BART6NIA, Muhl. {Prof. Bnjamin Snuih Barton, of Philadelphia, 

 one of the earliest teachers of botany in the U. S.) — Small and filiform annuals 

 or biennials, of Atlantic U. S. ; with fibrous root, simple or paniculately branch- 

 ing stems, leaves reduced to subulate appressed scales or bracts, and small pedun- 

 culate scattered flowers with white corolla. — Willd. in X. .Sehrift. Berl. iii. 144 

 (isill) ; Torr. Fl. 185 ; Benth. & Hook. Gen. ii. 818. Ceutaurella, Michx. Fl. 

 i. 97, 1803. Andrewsia, Spreng. Syst. i. 428. 



'B. tenella, Muh.1. A span to a foot high, rather rigid: flowers racemose or racemose- 

 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 cruci- 

 form. — Willd. 1. c. ; Gray, llan. ed. 5, 389. ■'iwiina Virginica, L. Centaurella pamc'il'ita, 

 ilichx. 1. c. t. V2, fig. 1. C. auiumnalis, Pursh, Fl. i. 100 ; Griseb. 1. c. Centaurium autumnale, 

 Pcrs. Syn. i. 137. Andrewsia auiumnalis, Spreng. 1. c. Centaurella ilostri, Steud. Jvom. ; 

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

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

 B. Verna, M nhl . A span high or less, somewhat corymbosely 1-few-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. I.e. 

 fig. 2 ; Griseb. 1. c. C. vernalis & C. CEStivalis, Pursh, 1. c. Centaurium vernum, Pers. 1. c. An- 

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

 spring. 



11. OBOLARIA, L. (D^o7.o',', a small Greek coin, from the rounded 

 le:ives.) — Gray, Chloris, 21, t. 3. — Single species. 



Q. 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 cuneate-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. &D2 (Gronov. 

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

 xi. 45; Gray. 1. c, & ^Man. ed. 5, .390. Orobanche Virginiana, etc., !Moris. Hist. iii. 504, sect. 

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

 to Georgia and Texas. 



