. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 846 COMPOSITAE (COMPOSITE FAMILY) leaves silky-lanate ; corymbs 2-10 cm. broad, very convex; involucre pubescent, none of its bracts dark-margined ; rays mm. long. — Gravelly shores and open ground, Gulf of St. Lawrence to Mich., thence westw. and southwestw.; naturalized In the Eastern States. (Mex.). 68. AnTHEMIS [Mich.] L. Chamomile Heads many-flowered, radiate; rays pistillate or (in no. 1) neutral. Invo- lucre hemispherical, of many s
. Gray's new manual of botany. A handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. Botany. 846 COMPOSITAE (COMPOSITE FAMILY) leaves silky-lanate ; corymbs 2-10 cm. broad, very convex; involucre pubescent, none of its bracts dark-margined ; rays mm. long. — Gravelly shores and open ground, Gulf of St. Lawrence to Mich., thence westw. and southwestw.; naturalized In the Eastern States. (Mex.). 68. AnTHEMIS [Mich.] L. Chamomile Heads many-flowered, radiate; rays pistillate or (in no. 1) neutral. Invo- lucre hemispherical, of many small imbricated dry and scarious bracts shorter than the disk. Eeceptacle conical, usually with slender chaff at least near the summit. Achenes terete or ribbed, glabrous, truncate; pappus none or a minute crown.—Branching often strong-scented herbs, with pin- nately dissected leaves and solitary terminal heads; rays white or yellow (rarely wanting) ; disk yellow. ('AvSe/ils, the ancient Greek name of the Chamomile.) * Bays white. t- Chaff of the receptacle sharp-pointed. 1. A. CdTULA L. (May-weed, Dog IFennel.) Annual, acrid, ill-scented; leaves finely 3-pinnately dissected; rays mostly neutral; receptacle without chaff near the margin; pappus none; achenes tuberculate-roughened. {Mariita DC.) — Common by roadsides. (Nat. from Eu.) iuo6. A. Cotuia. Pig. 1005. Leaf and ray xl%. 2. A. ARVENsis L. (CoRN C.) Pubes- cent annual or biennial, resembling May- weed, but not ill-scented; leaves less finely 1-2-pinnately parted ; chaff of the receptacle lanceolate, pointed, subtending all the disk-flowers and distinctly exceeding them ; achenes smooth on the sides; pappus a, minute border.—Roadsides, waste places, etc., occasional. (Adv. from Eu.) Fig. 1006. Var. AGRtsTis (Wallr.) DC. Chaff of the receptacle shorter than the disk-flowers. — Fields, etc., becoming frequent. (Nat. from Eu.) •1- -1- Chc^ff of the receptacle blunt. 3. A. n6bili8 L. (Garden C.) More downy and pere
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