POLEMONIACE&. 2 6i 



short, or none. Stigma 2-lobed, persistent. Capsule i-celled, valve- 

 less. 2f 



L. LACUNOSUM (Lake-flower). Floating ; stem filiform, bearing at top 

 a single leaf, an umbel of flowers, and a tuft of short radicles ; leaves reni- 

 form, floating at top, somewhat peltate, rough above ; flowers 5-6, in an 

 umbel beneath the water ; corolla white ; lobes oval. 1-3 feet long. July. 



4. Menyanthes. Calyx 5-parted. Corolla funnel-form, 5-parted, 

 deciduous. Stamens 5. Styles slender, persistent. Stigma 2-lobed, 

 capitate, i-celled. y. 



M. TRIFOLIATA (Buckbeari). Scape round, erect ; leaves radical, tri- 

 foliate, on long petioles, with sheathing, membranous bases ; leaflets oval, 

 varying to obovate, entire, sessile ; flowers in long, naked racemes ; corolla 

 white or flesh-colored. Bogs, i foot high. May. 



Order LIV. POLEMONIACE.E. 



Herbs. Leaves opposite, rarely alternate, simple or compound. 

 Calyx free from the ovary, 5-cleft, persistent. Corolla regular, 

 with a 5-lobed limb, convolute in prefloration. Stamens 5, inserted 

 on the corolla, alternately with its lobes, often unequal in length. 

 Ovary 3-celled. Style i. Stigma trifid. Capsule 3-celled, 3- 

 valved, loculicidal, the valves separating from the 3-angled axis, 

 which bears the seeds. 



(Leaves entire Phlox. 

 f Stamens declined-^. 

 Leaves not entire 4 



{_ Stamens not declined Polemonium. 



I. Phlox. Calyx somewhat prismatic, deeply 5-cleft. Corolla 

 salver-form, with the slender tube more or less curved. Stamens very 

 unequal, inserted in the corolla-tube above the middle. Capsule ovoid, 

 3-celled ; cells i-seeded. 



1. P. DIVARICATA (Early Phlox). Low, diffuse, covered with minute 

 down ; stems branching at base into a few, weak, ascending flowering- 

 branches ; leaves oblong-lanceolate ; floral leaves narrow-linear ; flowers in 

 terminal, loose corymbs ; corolla bright bluish-purple. In damp woods, 

 1-2 feet long. May. 



2. P. DRUMMONDII (Drummond">s Phlox). Plant clothed with rough, 

 glandular hairs; stem erect, dichotomously branching; leaves oblong or lan- 

 ceolate ; flowers very showy, in dense, terminal cymes ; calyx hairy ; corolla 

 varying from white to dark purple. In gardens, 8'-i2' high. 



3. P. SUBULATA (Dwarf Phlox') Stems procumbent, tufted, clothed 

 with minute down, very branching ; leaves rigid, or very narrowly linear, 

 small, crowded, with fascicles of smaller ones in their axils ; cymes few-flow- 

 ered ; corolla pink or rose-colored, rarely white. In gardens. May. 



