312 rLUMBAGiNACi:^'.. (lkadwokt family.) 



coarsely and sparingly tootlied ; seeds usually 2. — Sandy grounds, Uhode 

 Island to Illinois and southward. May -Sept. 



* * Stamens onli/ 2 : Imres narrowli/ linear or thread-shaped, bareli/ \-ribbcd: spike 

 invsllji sleiidfr, of few or inanif croivdiu or sailtered small Jlotrers. 

 8. P. pusilla, Nutt. Minutely pubescent (1'- 4' higii) ; leaves entire ; pod 

 short-ovoid, 4-se(did, little exceeding the calyx and bract. — Dry hills, New York 

 to Illinois, and southward. April- Aug. 



0. P. heterophylla, Nutt. Leaves rather fleshy, acute, entire, or some 

 of them helow 2-4-lobed or toothed; pod olilnmj-ronoidal, ]0-'28-seeded, nearly 

 twice the length of the calyx and bract. ( P. pusilla, Dtcaisne, in DC.) — Low or 

 sandy grounds, from Philadelphia southward. April -June. — Plant 2' -8' 

 high. 



§ 3. Flowers all rotiimonli/ firtik, but of 2 sorts on diffi-rent plants; the more common 

 mth.veri) small anthers on short filaments (perhaps early and close-frtilized) ; oth- 

 ers with large anthers on lomj-erserted f laments : corolla with broad round lobes 

 permaneiilli/ iridehj spreadinij : seeds 2 (one in each cell), boat-shaped, deeply hol- 

 lowed on the face: uwslltf annuals, with narrow and ivoolly or hairy leaves. 

 10. P. Patagonica, Jacq. Silky-woolly, or becoming naked; leaves 1- 

 3-nervcd ; spike (vlindrirai or oblong, dense; sepals very obtuse, scarious, with 

 a thick centre. (Fuund tln-ough almost the whole length of America.) 



Var. gnaphalioides, Gray. White with silky wool ; leaves varying from 

 oblong-linear to filiform; spike very dense (5' 4' long), woolly; bracts noi 

 exceeding the calyx. (P. Lagopus, Piirsh. P. gnaphalioides, AV/.) — Dry 

 plains, W.Wisconsin and southwestward. — Runs through var. spinulosa and 

 var. NiiDA mto 



Var. arist^ta, Gray. Loosely hairy and green, or becoming glabrous ; 

 bracts awned, 2-3 times the lengtl^of the flowers. (P. aristata, Michx., &c.) — 

 Llinois and southwestward. 



Order G3. PLUMB AGINAcE.*:. (Lead wort Family.) 



Maritime herhs, icith regular b-merous flowers., a plaited calyx., the 5 sta- 

 mens opposite the separate petals or the lobes of the corolla, and the free ovary 

 one-celled, with a solitary ovule hanr/ing from a long cord irhich rises from 

 the base of the cell. — The Statice/E or Marsu-Rosemary Tribe only 

 is repnisentcd in our region, in gardens by the Thrift (Arm'eria vul- 

 garis), on the coast by a single species of 



1. STATICE, Tourn. Sea-Lavender. Marsh-Rosemary. 



Flowers scattered or loosely spiked and 1 -sided on the branches, 2-3-bractcd. 

 Calyx funnel-form, dry and membranaceous, persistent. Corolla of 5 nearly or 

 quite distinct petals, with long claws, the 5 stamens severally attached to their 

 bases. Styles 5, rarely 3, separate. Fruit membranous and indehiscent, 1 -seeded, 

 in the bottom of the calyx*. Embryo straight, iii mealy Jilbumen. — Seaside 

 perennials, with thick and stalked radical leaves; the naked flowering stems or 



