Part 119 (1/2)

7. P. reptans, Michx. _Runners creeping_, bearing _roundish-obovate_ smoothish and thickish leaves; flowering stems (4--8' high) and their _oblong or ovate obtuse leaves_ (' long) _p.u.b.escent_, often clammy; cyme close, few-flowered; calyx-teeth linear-awl-shaped, about the length of the tube; _lobes of the reddish-purple corolla round-obovate, mostly entire_.--Damp woods, in the Alleghany region, Penn. to Ky. and Ga. May, June.

8. P. divaricata, L. Stems spreading or ascending from a dec.u.mbent base (9--18' high); _leaves oblong- or lance-ovate_ or the lower oblong-lanceolate (1' long), acutish; cyme corymbose-panicled, spreading, loosely-flowered; calyx-teeth slender awl-shaped, longer than the tube; _lobes of the pale lilac or bluish corolla obcordate or wedge-obovate and notched_ at the end, or _often entire_, --{2/3}'

long, equalling or longer than the tube, with rather wide sinuses between them.--Rocky damp woods, W. Canada and N. Y. to Minn., south to Fla. and Ark. May.--A form occurs near Crawfordsville, Ind., with reduced flowers, the narrow entire ac.u.minate corolla-lobes scarcely half as long as the tube.

[*][*][*] _Stems low, diffuse and branching; flowers scattered or barely cymulose; corolla-lobes narrowly cuneate, bifid; calyx-lobes subulate-lanceolate._

9. P. bifida, Beck. _Minutely p.u.b.escent_; stems ascending, branched (5--8' high); leaves linear, becoming nearly glabrous (--1' long, 1”

wide); flowers few, on slender peduncles; calyx-teeth awl-shaped, about as long as the tube; _lobes of the pale purple corolla 2-cleft to or below the middle_ (4” long), equalling the tube, the _divisions linear-oblong_.--Prairies of Ind. to Iowa and Mo.

10. P. Stellaria, Gray. _Very glabrous_; leaves barely somewhat ciliate at base, linear (1--2' long, 1” wide or more), acute, rather rigid; flowers scattered, mostly long-peduncled; _lobes of the pale blue or almost white corolla bifid at the apex into barely oblong lobes_.--Cliffs of Ky. River (_Short_), S. Ill., and Tenn.

(_Gattinger_). May.

-- 2. _Suffruticulose and creeping-cespitose, evergreen, with mostly crowded and fascicled subulate and rigid leaves._

11. P. subulata, L. (GROUND or MOSS PINK.) Depressed, in broad mats, p.u.b.escent (glabrate when old); leaves awl-shaped, lanceolate, or narrowly linear (3--6” long); cymes few-flowered; calyx-teeth awl-shaped, rigid; corolla pink-purple or rose-color with a darker centre (sometimes white); lobes wedge-shaped, notched, rarely entire.--Dry rocky hills and sandy banks, southern N. Y. to Mich., south to Fla. and Ky.

2. GiLIA, Ruiz & Pav.

Calyx-lobes narrow and acute, the tube scarious below the sinuses.

Corolla tubular-funnel-form or salver-form. Stamens equally or unequally inserted. Capsule with solitary to numerous seeds.--Mostly herbs with alternate leaves. Our species belongs to the -- _Collomia_, in which the flowers are capitate-glomerate and foliose-bracted or scattered, stamens unequally inserted in the narrow tube of the salver-form corolla, ovules solitary, and leaves sessile and entire; annuals. (Dedicated to _Philip Gil_, a Spanish botanist.)

1. G. linearis, Gray. Branching and in age spreading, 6--18' high; leaves linear- or oblong-lanceolate; calyx-lobes triangular-lanceolate, acute; corolla 6” long, from lilac-purple to nearly white, very slender, with small limb. (Collomia linearis, _Nutt._)--From Minn. west to the Pacific.

3. POLEMNIUM, Tourn. GREEK VALERIAN.

Calyx bell-shaped, herbaceous. Stamens equally inserted at the summit of the very short tube of the open-bell-shaped or short funnel-form corolla; filaments slender, declined, hairy-appendaged at the base.

Capsule few--several-seeded.--Perennials, with alternate pinnate leaves, the upper leaflets sometimes confluent; the (blue or white) corymbose flowers nearly bractless. (An ancient name, from p??e??, _war_, of doubtful application.)

1. P. reptans, L. Smooth throughout or slightly p.u.b.escent; stems weak and spreading (6--10' high, never creeping as the name denotes); leaflets 5--15, ovate-lanceolate or oblong; corymbs few-flowered; flowers nodding, calyx-lobes ovate, shorter than the tube; _stamens and style_ included; corolla light blue, about ' wide; _capsules about 3-seeded_.--Woods, N. Y. to Minn., south to Ala. and Mo. May, June.

2. P. caeruleum, L. (JACOB'S LADDER.) Stem erect (1--3 high); leaflets 9--21, linear-lanceolate, oblong- or ovate-lanceolate, mostly crowded; flowers numerous, in a thyrsus or contracted panicle; lobes of the calyx longer than the tube; _stamens and style mostly exserted_ beyond the bright blue corolla, which is nearly 1' broad; capsule several-seeded.--Rare in our range, occurring in swamps and on mountains in N. H., N. Y., N. J., and Md., but common in the western mountains and far northward.

ORDER 71. HYDROPHYLLaCEae. (WATERLEAF FAMILY.)

_Herbs, commonly hairy, with mostly alternate leaves, regular 5-merous and 5-androus flowers, in aspect between the foregoing and the next order; but the ovary entire and 1-celled with 2 parietal 4--many-ovuled placentae, or rarely 2-celled by the union of the placentae in the axis; style 2-cleft, or 2 separate styles; fruit a 2-valved 4--many-seeded capsule._--Seeds mostly reticulated or pitted. Embryo small in copious alb.u.men.--Flowers chiefly blue or white, in one-sided cymes or false racemes, which are mostly bractless and coiled from the apex when young, as in the Borage Family. A small order of plants of no marked properties; some cultivated for ornament.

Tribe I. HYDROPHYLLEae. Ovary and capsule 1-celled. Seeds pitted or reticulated; alb.u.men cartilaginous. Leaves cut-toothed, lobed or pinnate. Style 2-cleft.

[*] Ovary lined with the dilated and fleshy placentae, which enclose the ovules and seeds (in our plants only 4) like an inner pericarp.

1. Hydrophyllum. Stamens exserted; anthers linear. Calyx unchanged in fruit.

2. Nemophila. Stamens included; anthers short. Calyx with appendages at the sinuses.

3. Ellisia. Stamens included. Calyx dest.i.tute of appendages, enlarged in fruit.