. branching, with spreading hairs. Lvs. very large, on channeled stalks. Lfts. irregularly cut-lobed and serrated. Its huge umbels are often a foot broad. Involucre of lanceolate, deciduous leaflets. Petals deeply heart-shaped, whits, those of the outer fls. unequally enlarged (radiate). Jn.

8. ARCHEMO'RA, DC: (A fanciful name from Archemorus, who, according to mythology, died from swallowing a bee.) Calyx limb 5-toothcd ; petals obcordatc with an inflexed point; fruit oval, lenticular, compressed on the back ; carpels with 5 ribs, marginal ones broadly winged; intervals with single large vittae, commissure with 4 or 6 ; seeds flat. - Ц Invol. 0 or few-leaved. Involucels many-leaved.

1 A. rigida DC. Water Dropwort. Cowbane. St. rigid, striate, smooth; lvs. pinnately divided, smooth, lfts. 3 to 11, oblong-lanceolate or ovate, entire or remotely toothed, sessile; umbels spreading, smooth. - Swamps, Mich. to Fla. and La. St. 2 to 4f high, slender, terete. Lfts. 2 to 4' by 3 to 9", varying in outline in the same plant. Umbels 2 to 3, of many slender rays. Petals white. Fr. with subequal, greenish ribs, and large purple vitaet filling the intervals. Commissure white. Sept. - Said to be poisonous, (CEnanthe Nutt.)

β. ambigua. Lfts. long-linear, mostly entire. (CEnanthe ambigua Nutt.)

2 A. ternata Nutt. Lvs. ternately divided, with very long petioles; segm. linear. - Margins of swamps in the pine forests, N. to S. Car. Near Newbern (Nuttall). St. 2 to 3f high, slender. Lvs. and petioles 2f long; segm. 3" wide. Fruit as large as that of the parsnip.

9. TIEDEMAN'NIA, DC. (To Prof. Tiedemann, of Hiedelburg.) Calyx limb 5-toothed; petals roundish ovate; fruit flattened dorsally, obovate; carpels with 5 equal, filiform ribs, the lateral coalescing with the broad, marginal wings ; intervals with single large vittae, commissure with 2 ; seed flat. - Ц Smooth, tall, slender. Lvs. reduced to fis-tular-jointed phyllodia. Involucra subulate, 5 to 6-lvd. Fls. white.

T. teretifdlia DC. - Va. to La. and Fla. St. 3 to 6f high, hollow, round, striate. Phyllodia 6 to 16' long, tapering, the joints 1' apart. Fr. as large as in parsnip, disk dark brown, not wider than the yellowish wings. Aug., Sept

10. ANGEL'ICA, L. (Named for its excellencies.) Calyx teeth obsolete ; petals lanceolate, acuminate; fruit dorsally compressed ; carpels 5-ribbed, the 3 dorsal ribs filiform, the 2 marginal winged, intervals with single vittae; carpophore 2-parted ; seed semiterete. - Lvs. bi. or triternate, sessile, umbels terminal. Invol. 0 or few-leaved. Involucels many-leaved.

A. Curtisii Buckley. Lvs. biternato or with 3 quinate divisions; lfts. thin, ovate or lance-ovate, acuminate, sharply and incisely toothed; bracts of the involucel small, subulate ; wings of the fruit broad. - Ц Mts. of Ashe Co., N. Car. (Curtis.) Cheat Mt, Va. (Buckley.) Aug.

11. ARCHANGEL'ICA, Hoffm. Angelica. (Named for its preeminence in size and virtues.) Calyx teeth short; petals elliptical, entire, lanceolate, acuminate, with the point inflexed ; fruit dorsally compressed, with 3 carinate, thick ribs upon each carpel, and 2 marginal ones dilated into membranous wings; seed loose in the ripe carpel, covered with vittae. -Analysis of The Genera Part 3 790 Petioles usually large, inflated and 3-parted. Umbels perfect. Involucels many-leaved.

* Involucels less than half the length of the pedicels.......

..No.1

* Involucels about as long as pedicels. - Fruit broadly winged..

...Nos 2- 4

- Fruit scarcely winged........

...Nos. 5

1 A. atropurpurea Hoffm. St. dark purple, furrowed; petioles 3-parted, the divisions quinate, ifts. incisely toothed, odd leaflet of the terminal divisions rhom-boidal, sessile, the others decurreut; involucels of short, setaceous bracts. - Among the largest of the Umbelliferae, well known for its aromatic properties, common in fields and meadows, N. and W. States. St. 4 to6f high, 1 to 2\' in thickness, smooth, hollow, glaucous. Petioles large, inflated, channeled on the upper side', with inflated sheaths at base. Terminal lft. sometimes 3-lobed. Umbels spherical, 6 to 8' diam., mostly puberulent. Fr. 3" long, winged. Jn. Fls. greenish white. (Angelica triquinata Mx.)

2 A. hirsuta Torr. & Gr. St. striate, the summit with the umbels tomentous-hir-sute ; lvs. bipinnately divided, the divisions quinate, segm. oblong, acutish, the upper pair connate, but not decurrent at base. - Dry woods, N. York to Car. St. simple, erect, straight, 3 to 5f high. Lvs. on petioles from 6 to 10' long; lfts. 1 to 2 1/2' long, 1/4 as wide, mostly ovate-oblong, often tapering at base. Umbels 3 or 4, on long, velvety peduncles, 2 to 4' broad; rays unequal, spreading, densely tomentous. Invol. 0. Involucels of 4 to 6 bracts, about as long as the rays. Jl., Aug. (Angelica Mx.)

3 A. officinalis Hoffm. Garden- Angelica. St. smooth, round, striate; lvs. pinnately divided into lobate, subcordate, acutely serrate segments, the terminal one 3-lobed; sheaths largo and saccate. - Said to be native in Labrador. Cultivated in gardens occasionally for tho sake of the stalks, which are to be blanched and eaten as celery. ‡ (Angelica Linn.)

4 A dentata Chapman. Very slender, finely striate, with slender petioles; lower hs. first ternate, then ternate or quinate, with bnce-ovate, coarsely and remotely toothed, veiny segm., more or less confluent; umbels few-rayed, with scarcely ary involucre; involucel 4 to 6-leaved, about equaling the pedicels; fr. broad-ovil, broadly winged. - Bainbridge, Ga. (Misses Keen), Quincy, Fla. (Chapman.) Plat 2 to 3f high. Fr. 1 1/2" long. Jl, Aug.

5 A. peregrina Nutt. St. striate, pubescent at summit; lvs. ternately divided, the divisions quinate, segm. incisely serrate; umbel with many slender rays; invol. ; involucels of many lfts., as long as the umbellets; fr. with obtuse, subequal, scarcdy icinged ribs. - Sea coast, Me. and Mass. (Pickering.)

12. DAU'CUS, Tourn. Carrot. (Analysis of The Genera Part 3 791 , the ancient Greek name of the carrot.) Calyx limb 5-toothed ; petals emarginate, with an inflected point, the 2 outer often largest and deeply 2-cleft; fruit oblong; carpels with 5 primary, bristly ribs, and 4 secondary, the latter more prominent, winged, and divided each into a single row of prickles, and having single vittae beneath; carpophore entire, free. - (2) Invol. pin-natifid. Involucels of entire or 3-cleft bracts. Central fl. abortive.