ONAGRACEyE. (EVENING-rUI.MUOSE FAMII.Y.) 141 



to Mississippi, and northward. August. — Stem 2° - 3"^ hit^h. Flowers axillary, 

 or the upjier ones somewhat raecmed. 



2. L. virgata, Michx. Tomentosc ; stem slender, simple, or hranehing 

 from the base ; leaves obtuse, sessile, the lowest oblong, the uppermost linear ; 

 flowers in elongated leafy racemes ; petals twice as long as the reflexed ealyx- 

 lobcs ; capsule strongly 4-angled. — Low pine barrens, sometimes in rather dry 

 places, Florida to North Carolina, and westward. July and August. — Stem 

 2° -3° high. Varies considerably in pubescence, and size of the flowers and 

 capsule. 



3. L. hirtella, Raf. Hairy ; stem slender, simple or sparingly branched ; 

 leaves short, lanceolate or oblong, obtuse, sessile and rounded at the base; flow- 

 ers axillary ; petals twice as long as the erect or spreading calyx-lobes ; capsule 

 strongly angled. (L. pilosa, Ell.) — Flat pine barrens, Florida to ^lississippi, 

 and northward. August. — Stem 2° - 3° high. 



* * Valves of the capsule sejxiruting from the concave disk, and iiTegularly from the 

 persistent partitions and placenta : culijx-lobes persistent : petals small or noiie : sta- 

 mens and style short : stems erect or ascending : leaves alternate : flowers sessile. 

 -I— Petals conspicuous. 



4. L. linearis, "Walt. Smooth; stem (l°-3° high) virgately much 

 branched; leaves linear, acute; flowers small; capsule clavate-oblong, with. 4 

 rounded angles, 2-3 times as long as the triangular-ovate calyx-lobes. — Ditch- 

 es and ponds, Florida to IMississippi, and northward. July - Sept. — Bark at 

 the base of the stem spongy. 



.'). L. linifolia, Poir. Smooth; stem low (C- 12'), creeping at the base, 

 branching ; leaves linear or linear-spatulate, often obtuse ; capsule linear-cylin- 

 drical, rather longer tlian the lanceolate calyx-lobes. — Ditches and swamps in 

 the low country, Florida to North Carolina, and westward. July - Sept. 



■1— -1— Pet(tls minute or leant ing. 



6. L. cylindrica, Ell. Smooth ; stem angled above, often much branched ; 

 leaves long, lanceolate, obscurely denticulate, acute, tapering into a petiole ; 

 petals none ; capsules axillary, often clustered, cylindrical or obscurely 4-side(l, 

 many times longer than the small calyx-lobes. — Swamps, Florida to Soutli 

 Carolina, and westward. July -Sept. — Stem mostly bushy, 2° -3° hi^'h. 

 Leaves 3' -4' long. 



7. L. pilosa, Walt. Tomentosc ; stem stout, terete, much branched ; leaves 

 sessile, lanceolate or oblong, acute; flowers in dense terminal si)ik.es; petals 

 mostly wanting ; capsule globose - 4-sided, about as long as the spreading ealvx- 

 lobes. (L. mollis, £■//.) — Ditches and ponds near the coast, Floritbi to North 

 Carolina, and westward. July- Sept. — Stem 2° -3° high, the branches spread- 

 ing. Capsule whitish. 



8. L. sphserocarpa. Ell. Smooth or slightly pubescent ; stem slender, 

 angled above, short-branched ; leaves linear-lanceolate, acuminate ; flowers very 

 small, axillary ; petals none ; capsule globose, pubescent, as long as the calyx- 

 lobes. — Margins of ponds, Florida to Mississippi, and northward, not common. 

 July -Sept.— Stem 2° -3° high. Capsule l"-2" long. 



