UMBELLIFER^. (I'AUSLKY FAMILY.) 201 



■M. •«• Seed straight, not sulcatc ; uiiiIm-Is simitlc. 



34. Uydrocotyle. Fruit more or less orbicular, with im oil tulic-s. Low iKjrcijuiaU, in or 



near water, with creeping stems, ami pelt;ite or reiiifurin Icavtts. 



« * * * Fruit obovoid or globose, densely prickly or scalj'. 



35. £ryn|;luin. Flowers sessile in dense bracteute heatls, white or blue. I^caves moatly 



rigid and more or less spino.se. 



36. Sanicula. Flowers in irregularly comi)ound few-rayed umbels, yellow. Leavejj pnlniat«. 



1. D AUG US, Touru. Carrot. 



Cillyx-teeth obsolete. Fruit ohloiii^, flattened dorsally ; stylojjodiiim ile- 

 pres.sed ; carpel with 5 .slender bristly in-imarv rih.s and 4 wini^ed secondarv 

 ones, eaeli of the latter bearinj^ a simple row of barbed prickles; oil-tubes soli- 

 tary under the secondary ril)s, two oji the coinini.ssural side; ; seed-face soniewliat 

 concave or almost flat. — Bristly annuals or biennials, with pinnately decom- 

 pound leaves, foliaceous and cleft involucral bracts, and white flowers in com- 

 pound umbels which become strongly concave. (The ancient (Jreek name.) 



D. Cauot.v, L. Biennial; stem bristly; ultimate leaf-segments lauceohite 

 and cuspidate; rays numerous. — Naturalized everywhere, from Ku. 



2. CAUCALIS, L. 



Calyx-teeth prominent. Fruit ovate or oblong, flattened laterally ; stylo- 

 podium conical ; prickles barbed or hooked ; seed-face deejdy sulcate. Other- 

 wise as Daucus. — Our species annual. (Tlie ancient Greek name.) 



C. NODOSA, Hudson. Decumbent, branching only at base, stems 1-2° long, 

 retrorsely hispid ; uml)els naked, opposite the leaves and nearly sessile, of 2 or 

 3 very short rays. — Md., Iowa, anil southward. (Nat. from Eu.) 



C. Antiikiscis, Hudson, has I-2-piniiate leaves with broad leaflets, and 

 more regularly compounded umbels. — Ohio, etc. (Nat. from Eu.) 



3. ANGELICA, L. 



Calyx-teeth obsolete. Fruit strongly flattened dorsally ; primary ribs very 

 prominent, the laterals extended into broad distinct wings, forming a double- 

 winged margin to the fruit; oil-tubes one to several in the intervals or indefi- 

 nite, 2 to 10 on the commissure. — Stout perennials, with ternately or pinnately 

 compound leaves, large terminal umbels, scanty or no involucres, small many- 

 leaved involucels, and white or greenish flowers. (Named angelic from its 

 cordial and medicinal properties.) 



* Seed adherent to the pericarp ; oil-tubes one to several in the intervals ; upper- 

 most leaves mostly reduced to large inflated petioles. 



1. A. Curtisii, Buckley. Glabrous; leaves twice ternate or the divisions 

 quinate; leaflets M/h, ovate-lanceolate (1-3' broad), sharp! i/ and irregular! // 

 toothed ; fruit glabrous, H-3" broad; oil-tubes mostly one in the intervala 

 (sometimes 2 or 3). — Along the Alleghanies from Penn. to N. 0. Aug. 



2. A. hirsuta, Muhl. Pubescent above ; leaves twice pinnately or ter- 

 nately divided ; leaflets thirk-ish, lanceolate to oblong (5-lO" broad), serrate; 

 fruit pubescent, 2" broad; oil-tubes 3-6 in the interval.-^. (Archangelica hir- 

 suta, Torr. (^' Graij.) — Dry ground, Conn, to Minn., Tenn., and Kla. July. 



* * Seed loose; oil-tubes indeflnite (25-30) ; upper petioles not so prominent. 



3. A. atropurpiirea, L. Very stout, glabrous throughout, with dark 

 purple stem ; leaves 2-3-tcrnately divided, the pinnate segments of .'>- 7 Ian- 



