50 4 Order 78.— PRIMULACK.fi. 



T. Americana Ph. St. erect, simple, leafless at baso ; lvs. glomerate, few, nar- 

 row-lanceolate, serrulate, acuminate ; sep. linear, acuminate. — This little plant is 

 common in the rocky woods of Can., N. States, southward to Atalanta, Ga. St. 

 3 to 6' high, with an irregular whorl of 4 to 8, lanceolate, smooth and shining 

 lvs. at the top. In the midst of these are 1 to 4 white, star-like lis., borne on 

 simple, filiform pedicels. Tho lvs. are mostly 3' long and 1' wide. Segm. of cor. 

 -longer than the acute caL lvs. May, Jn. 



8. MUMBUR'GIA, Mceneh. (Dedicated to one Naumberg, an early 

 German botanist.) Calyx and corolla deeply 5 to 6-parted; petals 

 linear-lanceolate, spreading, separated by minute intervening teeth ; 

 stamens 5 to G, inserted into the base of the corolla, exserted, anthers 

 cordate ; capsule globous, 5-valved ; seeds few, on a globous placenta, 

 — 21 with opposite lvs. Fls. small, in dense, thyrsoid racemes. (Ly- 

 simachia L.) 



JT. thyrsiflora Mocnch. — An erect, smooth herb, about 2f high, Mass., Vt., K Y., 

 "W. to Ohio, N. to Arc. Am. Lvs. many pairs, sessile, lanceolate acute, entire, 

 punctate, somewhat cauescent beneath, 2 to 3' by $ to I'. Rac. somewhat 

 capitate, on filiform, axillary ped. Fla yellow. Stain, much oxsertcd, united 

 into a tube at base. Jn. 



9. LYSIMACH'IA, L. Loose-strife. (To Lysimachvs, King of 

 Sicily, who first used it. Pliny.) Calyx 5-parted, rotate or campanu- 

 Ifcte, tube very short ; stamens 5, inserted into the corolla at base ; 

 filaments often somewhat connate or with intervening, sterile ones ; cap- 

 sule globous, 5 to 10-valvcd, opening at the apex ; seeds few or many. 

 — Herbs 21, with opposite or verticillate entire lvs. (Fls. yellow.) 



§ Sterile filaments 0. Perfect stamens 5. unequal. Leaves and often the flowers dotted, (a) 



a Flowers verticillate, in a terminal, bracted raceme Nos. 1, 8 



a Flowers opposite or verticillate, axillary or panicled Nos. 8, 4 



§ Sterile filaments 5 short teeth interposed between the perfect stamens Dotless. (b) 



b Stem erect. Leaves opposite, acute and tapering :-:t base Nos. 5, 6 



b Stem erect. Leaves opposite, obtuse or subcordate (it base No. 7 



b Stem decumbent and trailing. Leaves opposite Nos. 8, 



1 L. stricta Ait. Simple or branched, erect ; lvs. opposite (rarely) ternate. lan- 

 ceolate or lance-linear, glabrous, punctate, acute, sessile ; fls. verticillate, in a long, 

 lax, terminal raceme ; pet. lanceolate spreading. — U In low, wet grounds, Can., 

 N. Eng. to Ya. and Ohio. Plant smooth, 1 — 2f high, raceme C — 8' long. Ped. 

 1' long, spreading, each with a subulate bract at base. Stamens 2 long and 3 

 ehort, united at "base. Pis. yellow, streaked with purple. After flowering it 

 throws out bulbleta from the axils of tho leaves, which will produce new plants 

 the following spring. Jl. 



2 L. Herbemonti Ell. Glabrous, simple; lvs. whorled in 45 or 5s, sessile, lance- 

 ovate or ovate, obscurely 3-veined, acuminate, glaucous beneath ; margin revolute, 

 entire ; fls. verticillate, in a terminal, bracted raceme. — A handsome species, near 

 Columbus, S. Car. (Ilerbcmont). Plant 2f high. Lvs. becoming more narrow 

 above, passing into tho linear bracts, and with tho bright yellow fls., sprinkled 

 with dots. Stem unequal. Jn., Jl. 



3 L. quadrifolia L. Simple, erect ; lvs. verticillate, in 4s, rarely in 5s or 3s. ses- 

 sile, lanceolate, acuminate, punctate; ped. axillary, 1-flowered, in 4s (3s or 5s); 

 pet. oval, obtuse. — U In low grounds, river banks, Can. to Car. and Ky. Stem 

 18' high, somewhat hairy, simple, with many whorls of 4 — 3 leaves, each bear- 

 ing a flower-stalk in its axil. Corolla yellow, with purple lines. Stamens un- 

 equal, united at base into a short tube. Anth. purple. Jn. 



4 L. Fraseri Duby. Glandular-pubescent and branched above ; lvs. opposite, 

 petiolale, ovate, often cordate, acuminate, glabrous; fls. in a compound, terminal, 

 bracted panicle. — In. S. Car. (Frazer in DC.) Fls. numerous. Cal. segm. acumi- 

 nate, the margins thickened, brownish, ciliated. Stam. unequal, 2 of them 

 Bhorter than the other 3, sterile fil. none. 



