Part 150 (1/2)
16. E. Darlingtnii, Gray. Tall _perennial_ (2--4 high); _leaves entire, minutely downy beneath_; those of the stem lanceolate-oblong from a narrow base; the floral oval, very obtuse; the upper roundish-dilated with a truncate base; umbel 5--8-rayed, then simply forked; _pod minutely warty_; large globular seed with a small caruncle.--Copses, N. Y. and Penn., to the mountains of N. C.
July--Sept.
17. E. obtusata, Pursh. Erect _annual_ (1--2 high); _leaves oblong-spatulate_, minutely serrulate, _smooth, all obtuse_; upper ones cordate at base; floral ones ovate, dilated, barely mucronate; umbel once or twice divided into 3 rays, then into 2; _involucre with naked lobes_ and small stipitate glands; _styles distinct_, longer than the ovary, erect, _2-cleft to the middle_; pod beset with long warts.--Damp woods, Va. to S. C., west to Iowa and Kan. May--July.
E. PLATYPHLLA, L. Erect _annual_ (8--18' high); upper _stem-leaves lanceolate-oblong, acute_, cordate at base, minutely serrulate, mostly _with scattered hairs beneath_; floral ones triangular-ovate, subcordate; umbel 5-rayed; _involucre with ciliate lobes_ and large sessile glands; _styles_ longer than the ovary, _united at base, slightly 2-cleft_; pod covered with depressed warts.--Along the St.
Lawrence and Great Lakes to Mich. June--Aug. (Adv. from Eu.)
[++][++] _Seeds rugose or reticulated; leaves serrulate; annuals._
18. E. dictyosperma, Fischer & Meyer. Stem erect (8--18' high); _leaves_ oblong- or obovate-spatulate, smooth, all obtuse and _obtusely serrate_; upper ones cordate at base; floral ones roundish-ovate or obscurely heart-shaped, slightly mucronate; umbels once or twice 3-forked, then 2-forked; involucre with nearly naked lobes and _small almost sessile glands_; styles shorter than the ovary, spreading or recurved; _pod warty; seeds delicately reticulated_.--Prairies and roadsides, Md. to Minn., Ala., and westward. May--July.
E. HELIOSCPIA, L. Stems ascending (6--12' high), stout; _leaves all obovate_ and very rounded or retuse at the end, _finely serrate_, smooth or a little hairy, those of the stem wedge-shaped; umbel divided into 5 rays, then into 3, or at length simply forked; _glands...o...b..cular, stalked; pods smooth and even; seeds with coa.r.s.e honeycomb-like reticulations_.--Waste places, eastward and along the Great Lakes to Mich. July--Sept. (Nat. from Eu.)
[+][+] _Leaves entire; glands crescent-shaped or 2-horned._
[++] _Seeds smooth and dark-colored; perennials, with running rootstocks._
E. eSULA, L. Stems cl.u.s.tered (1 high); _leaves lanceolate or linear, the floral_ (yellowish) _broadly heart-shaped_, mucronate; umbel divided into many rays, then forking; _glands short-horned_ (brown); pods smoothish and granular.--Ma.s.s., western N. Y., and Mich.; rare. (Adv.
from Eu.)
E. CYPARiSSIAS, L. Stems densely cl.u.s.tered (6--10' high); _stem-leaves linear, crowded, the floral heart-shaped_; umbel many-rayed; _glands crescent-shaped_; pods granular.--Escaped from gardens, common. (Nat.
from Eu.)
E. NICaeeNSIS, All. _Stout and tall_ glabrous perennial; _leaves oblong or oblong-lanceolate_, the floral broadly heart-shaped, mucronate; terminal umbel many-rayed, the rays forking; glands short-horned; _pods finely wrinkled_.--A rare escape; Binghampton, N. Y. (Adv. from Eu.)
[++][++] _Seeds sculptured, ash-colored; pod smooth; annuals or biennials._
E. PePLUS, L. Erect or ascending (5--10' high); _leaves petioled_, thin round-obovate, the upper floral ones ovate; umbel 3-rayed, then forking; glands long-horned; lobes of the _pod 2-wing-crested_ on the back; _seeds 2-grooved on the inner face, pitted on the back_ (scarcely over ” long).--Waste places, N. Eng. to N. J. and western N. Y. (Adv. from En.)
19. E. commutata, Engelm. Stems branched from a commonly dec.u.mbent base (6--12' high); _leaves_ obovate, obtuse; the upper all _sessile_, the upper floral ones roundish-dilated, broader than long; umbel 3-forked; glands with slender horns; _capsule obtusely angled; seeds ovate, pitted all over_ (1” long).--Along streams and shady slopes, Md. to Fla., Minn., and Mo.
[*][*][*] _Glabrous annual or biennial with entire opposite and decussate leaves, an umbelliform inflorescence, and short-horned glands._
E. LaTHYRIS, L. Stem stout (2--3 high); leaves thick, linear or oblong, the floral oblong-ovate and heart-shaped; umbel 4-rayed, then forking.--Sparingly escaped from gardens, N. Eng. to N. C. (Adv. from Eu.)
2. PACHYSaNDRA, Michx.
Flowers moncious, in naked spikes. Calyx 4--5-parted. Petals none.
_Ster. Fl._ Stamens 4, separate; filaments long-exserted, thick and flat; anthers oblong-linear. _Fert. Fl._ Ovary 3-celled; styles 3, thick, awl-shaped, recurved, stigmatic down their whole length inside.
Ovules a pair in each cell, suspended, with the rhaphe dorsal (turned away from the placenta). Capsule deeply 3-horned, 3-celled, splitting into 3 at length 2-valved 2-seeded carpels.--Nearly glabrous, low and proc.u.mbent perennial herbs, with matted creeping rootstocks, and alternate, ovate or obovate, coa.r.s.ely toothed leaves, narrowed at base into a petiole. Flowers each 1--3-bracted, the upper staminate, a few fertile ones at base, unpleasantly scented; sepals greenish or purplish; filaments white (their size and thickness giving the name, from pa???, _thick_, and ????, used for _stamen_).
1. P. proc.u.mbens, Michx. Stems (6--9' long) bearing several approximate leaves at the summit on slender petioles, and a few many-flowered spikes along the base; the intervening portion naked, or with a few small scales.--Woods, mountains of Ky., W. Va., and southward. March--May.
3. PHYLLaNTHUS, L.
Flowers moncious, axillary. Calyx usually 5--6-parted, imbricated in the bud. Petals none. Stamens mostly 3, erect in the bud, often united.