684 FLORA. 



Leaves mostly ternate; segments crenate, thickish. I. T. trifoliatum. 

 Leaves mostly biternate; segments incised or lobed, rather thin. 



Segments ovate, incised. 2. 7\ barbinode. 



Segments pinnatifid into oblong lobes. 3. 7'. pinnatifidum. 



1. Thaspium trifoliatum (L.) Britton. PURPLE MEADOW-PARSNIP. (I. F. 

 f. 2651.) Glabrous; stems 3-6 dm. high. Upper stem-leaves short-petioled, ter- 

 nate, or rarely biternate, the segments ovate or ovate-lanceolate, 2-5 cm. long; 

 basal leaves long-petioled, sometimes undivided; umbels 2-5 cm. broad; petals 

 dark purple; fruit nearly 4 mm. long, all the ribs usually winged. In woods, R. 

 I. to N. J., Tenn. and Mo. June-July. 



Thaspium trifoliitum aureum (Nutt.) Britton. Flowers yellow. Range of the type. 



2. Thaspium barbinode (Michx.) Nutt. HAIRY-JOINTED MEADOW-PARSNIP. 

 (I. F. f. 2652.) Erect, 6-12 dm. high, pubescent at the joints and sometimes also 

 on. the shoots and rays of the umbels. Leaves petioled, mostly bipinnate; seg- 

 ments acute, incised-serrate or cleft, 2-5 cm. long; umbels 2-5 cm. broad; flowers 

 light yellow; fruit nearly 6 mm. long, usually glabrous, 7 of the ribs commonly 

 broadly winged. Along streams, Ont. to Minn., Kans., Fla., Ky. and Ark. May- 

 June. 



Thaspium barbinbde angustifolium Coult. & Rose. Leaf-segments more sharply 

 cleft into narrower lobes; fruit puberulent. Penn. to W. Va. and 111. 



3. Thaspium pinnatifidum (Buckl.) A. Gray. CUT-LEAVED MEADOW- 

 PARSNIP. (I. F. f. 2653.) Divergently branched, 6-12 dm. high, more pubescent 

 than the preceding. Leaves ternately pinnatifid into numerous oblong or linear- 

 oblong lobes, the basal ones long-petioled and very large; flowers light yellow; 

 fruit 3-5 mm. long, puberulent, all the ribs winged, but 7 of the wings broader 

 than the other 3. In woods and copses, Ky. to N. Car. and Tenn. June. 



37. CONIOSELINUM Hoffm. 



Perennial glabrous branching herbs, with decompound leaves, and compound 

 umbels of white flowers. Involucre none, or of a few short bracts. Involucels of 

 narrowly linear bracts. Calyx-teeth obsolete. Stylopodium depressed-conic. Fruit 

 oval or oblong, dorsally flattened. Carpels with prominent approximate dorsal 

 and intermediate ribs, the lateral ones broadly winged. Oil-tubes mostly 2 or 3 in 

 the intervals, and 4-8 on the commissural side. Seed-face slightly concave, its 

 back strongly convex. [Greek, hemlock-parsley.] Besides the following, some 

 3 others occur in western N. Am. 



i. Conioselinum Chinense (L.) B.S.P. HEMLOCK-PARSLEY. (I. F. f. 

 2638.) Stem terete, 6-15 dm. high. Leaves decompound into linear-oblong acutish 

 segments; petioles sheathing; umbels 5-8 cm. broad, g-i6-rayed; rays 3-6 cm. 

 long; pedicels slender, 4-6 mm. long; fruit broadly oval, about 4 mm. long. In 

 cold swamps, Lab. to Mass., N. Y., N. Car., Minn., Wis. and Ind. Aug.-Sept. 



38. ANGELICA L. 



Tall perennial herbs, with compound leaves and large umbels of white flowers 

 (in our species). Involucre none, or of a few small bracts. Involucels of several 

 small bracts, or sometimes wanting. Stylopodium depressed. Fruit ovate or oval, 

 dorsally compressed. Dorsal and intermediate ribs prominent, the lateral ones 

 broadly winged. Oil-tubes solitary or several in the intervals, 2-10 on the com- 

 missural side. [Named for its supposed healing virtues.] About 30 species, of 

 the northern hemisphere and New Zealand. Besides the following, some 13 others 

 occur in southern and western N. Am. 



Umbels glabrous, or nearly so; leaf-segments acute or acutish. 



Oil-tubes i (rarely 2-3) in the intervals ; wings broader than the carpels 



1. A. Curtisii. 

 Oil-tubes numerous and contiguous; wings narrower than the carpels. 



2. A. atropurpurea. 

 Umbels densely tomentose; leaf-segments obtuse. 3. A. villosa, 



i. Angelica Curtisii Buckl. CURTIS' ANGELICA. (I. F. f. 2635.) Plant 

 (>-io dm. high. Leaves biternate, the lower long-stalked, the divisions pinnate, 



