102 PYROLACEAE. 



S. perfoliate! (L.) A. DC. Venus Looklnii-tjlaxs. Annual, stem simple, fi-il) 

 inches high, erect; leaves cordate-clasping, somewhat reniform, crenate; 

 flowers sessile, usually *-3 in the axUs of the upper leaves, corolla conspicu- 

 ous in but few flowers. Fields and woods; May-A.ngu.st; common. (Leuimzut 

 pci'fiilitittt (L.) Britton). 



LOBELIA L. Flowers in some form of a bracted raceme. Corolla tubular, 

 deeply cleft on the upper side, 2-lippert, upper lip :2-lobed, lower 3-lobed. 

 Stamens 5: anthers and usually the filaments united into a curved tube.. 2 of 

 the anthers bearded. Style 1. .. Capsule 2-celled, containing 1 many small 

 seeds, open4qR'.loculicidally. 



* Flowers red or scarlet 



L. cardinalis L. CnttUtuU-Jlmoei: Stem 2-4 feet high, simple, glabrous, 

 leafy; leaves oblong-lanceolate, tapering- both ways, shortly toothed: flowers 

 conspicuous, deep red or scarlet, in ^a terminal br,acted raceme, stamens ex- 

 ceeding the corolla, calyx-lobes one-half inch, long, linear. . Damp woods, 

 marshy places: August-September; frequent; Muscatine, Louisa, Des Moines, 

 Johnson, Story, and Appancose counties; reported from Fayette and Scott 

 counties. 



* * Fltitrerx blue, or blue ami wliitc. 

 f Flojvers ropier lanje, the. corolla tube nlmiU o lutlf-inrli in lemjtli. 



L. syphilitica L. Great Lobelia. Perennial; stem 1-3 feet high, angular, 

 hairy to glabrous;, leaves lanceolate, acute, thin, unequally serrate; flowers 

 blue, varying to white, in a spike-like raceme: calyx hirsute, sinuses with de- 

 tlexed auricles; corolla about an inch in length. Moist soil; Jul3'-September; 

 common. 



L. puberula Ms. Finely soft pubescent; leaves thic.kish, obtuse, denticu- 

 late, oval to oblong or obovate, the lower petioled; sinuses of- the calyx witli 

 sn:all or inconspicuous auricles; corolla about one-half inch in length. Moist 

 soil; August-September; reported from Scott county. 



f.f Flmrers small; corolla-lube very short. 



L. spicata Lam. Stem simple, erect, 1-3 feet high, pubescent below, less 

 so above; leaves oblong, varying from spatulate below to linear bracts above, 

 obtuse, more or less denticulate; flowers in a slender spike-like raceme; calyx- 

 tube sho.rt. hemispherical, teeth long,and slender; corolla pale blue, tube one- 

 fourth inch or less in length. Upland fields and meadows; June-July: com- 

 mon. The variety iiihtm.i.a Gray, pubescence somewhat scabrous, bracts and 

 calyx-lobes ciliate or hirsu.te, occurs along with the type. . 



L. leptostachya A. DC. Similar to the preceding; sinuses of the calvx 

 with deflexed'subulate auricles. .Dry soil; June- .August: probably belongs to 

 our flora. 



L. inflata L. Indian Tobacco. A narcotic annilal; stem about 1 foot high, 

 simple, erect, branched, hairy or pubescent; leaves ovate, obtusely serrate: 

 flowers small, pedicels shorter than the leafy bracts; pod. inflated.' Upland 

 woods; July-September; infrequent; Winneshiek. Muscatine. Johnson, Des 

 Moines, Van Buren, Wapello. Appanoose. Louisa., and Decatur counties: re- 

 ported from Faye.tt.e and Story counties. 



PYROLACEAE Agardh. Winterortsrn Familv. 

 Low mostly evergreen perennials, with branched roots tricks, simple 

 petioled exstipuiate leaves, and perfect, nearly regular, solitary, race- 

 mose, or corymbose flowers. Calyx 4 5-lobed. Corolla of 5 petals or 4- 



