PRIMUI^ACE^. 248 



5. TRIENTA'LIS. 

 Corolla rotate, 7-parted, equal ; stamens?; fruit capsular, 

 dry, many-seeded. 



Lat. tricns, the third part of a thing; a name singularly inappropriate. 

 Low, perennial herbs. Stem simple. Fls. terminal, the parts varying from 

 5s to 8s. Cal.free, 5 — 8-parted. Cor. deeply divided, seg. elliptical, spread- 

 ino-. Fil. shorter tihan cor. spreading, equalling the style. Caps. 5 — 8-valved. 



T. AmERICA'NA. Ph. T. Europaj'a. Mx. 



Leaves lanceolate, serrulate, acuminate; petals acuminate. This little 

 plant is not uncommon in our woods, and is our only good native example of 

 the Linniean class, Heptandria. it has a smooth, round, slender stem 3 — 6 

 inches hjo-h, with an irregular whorl of 5 — 8 lanceolate, smooth and shining 

 leaves at the top. In the midst of these are 1 — 4 white, star-like flowers, 

 borne on simple, filiform pedicels. The leaves are mostly acuminate at each 

 end, 3 inches long and 1 wide. Segments of the corolla longer than the 

 acute calyx leaves. Seeds attached to a central, spongy placenta. May, Jn. 



Ckickxoeed Winter green. 



6. GLAUX. 



Calyx campanulate. 5lobed, colored; corolla 0; stamens 5; 

 capsule roundish, surrounded by the calyx, 5-valved, 5-seeded. 



Gr. yXuvnoi, bluish or glaucous; the plant is a maritime herb with opposite, 

 glaucous ^a-yes. Receptacle convex, favulose-punctate.. 



G. mari'tima. 



A small, smooth, fleshy plant, found occasionally in the salt marshes on 

 our seacoast. Root perennial. Stem more or less procumbent at base, 4 — G 

 inches high, smooth, branching, and very leafy. Leaves J inch in length, 

 roundisli-ovate, obtuse, entire, nearly or quite sessile, smooth, fleshy anil 

 darkly glaucous. Flowers small, sessile, axillary, solitary. Calyx white, 

 tinged wUh red. July. Bluck Sulticurt. 



7 . S A M O' L U S . 

 Calyx partly adherent to the ovary; stamens 5, alternating 

 with 5 sterile filaments, (scales); corolla h} pocrateriform, 5- 

 cleft; capsule dehiscent at top by 5 valves, many-seeded. 



Celtic, san, salutary, and mos, a pig. Pliny says the plant was considered 

 among the Gauls a specific in all maladies of swine. Herbs with alternate 

 leaves. Fls. racemose. Cal. of a hemispherical, half superior tube and a 

 deeply 5-cleft margin. 



S. Valera'ndi. 



Leurcs obovate, obtuse ; racemes many-flowered; ■pedicels hractcolate. An 

 erect, smooth plant in wet, gravely places. Stem a foot high, round, with 

 alternate, entire, broadly lanc<'olnte leaves an inch in length, and tapering to 

 short petioles. Racemes terminal, long. Flowers small, white, their pedicels 

 having a small bractea near the middle. Corolla twice the lengtli of the 

 calyx, the tube broad, the limb bearing the barren filaments between its deep- 

 cleft, obtuse lobes, and the true st-imens opposite the latter and alternate with 

 the former. July — Sept, Per. li'ater Pimycrntl. 



