430 COMPOSITiE. Antennaria. 



strongly 

 iatipes, DC. 



§ 3. Heads entirely dicecious : pappus of the sterile flowers mostly 

 clavate : stems ccespilose, often surculose, or stoloniferous. — Catipes 



2. A. luzuloides : silky-villous throughout ; sterile stems or stolons none ; 

 leaves linear, obscurely 3-nerved, tapering to the base ; corymb compound, 

 loose; sterile heads small; the exterior scales of the glabrous involucre 

 short and rounded ; the inner ones spatulate, with dilated and very obtuse 

 white tips. 



Oregon or Rocky Mountains. {Drummond or Douglas.) — Siem 10 inches 

 high, slender, simple, clothed like the leaves with a close appressed silky 

 pubescence. Leaves 2-3 inches long, 1-2 lines wide. Heads numerous 

 (40-50) in an open compound corymb, not more than half the size of those of 

 A. Carpathica: the scales of the involucre not sphacelate or eroded. Pappus 

 not denticulate or scabrous ; the tips very much dilated and spatulate. — Al- 

 though most related to Hooker's striking var. pulcherrima of the following 

 species, yet it has very much smaller and glabrous heads, and narrower 

 leaves ; and widely differs from the original A. Carpathica. We have only 

 seen the staminate plant. 



3. A. Carpathica (R. Br. 1. c.) : sterile stems not stoloniferous ; leaves 

 lanceolate, or the radical oblanceolate, 3-nerved, villous-tomentose ; corymb 

 capitate ; involucre very woolly and turbinate at the base, brownish, 

 the inner with elongated and shining sphacelate-scarious (often while) 

 tips, which are obtuse in the sterile, but acute in the fertile heads. 

 —Bluff SfFing. fl. Germ. 2. p. 348 ; Hook.! fl. Bor.-Am. 1. p. 329; 

 DC. ! prodr. 6. p. 269. Gnaphalium Carpathicum, Wahl. fl. Carp. 

 p. 258, t. 3 ,• Koch, fl. Germ. S^' Helv. p. 364. (Varies with the leaves 

 nearly glabrous above, or woolly both sides. Hook. I. c.) 



(3. pulcherrima (Hook. ! 1. c.) : tall (a foot or more high), and silky-tomen- 

 tose throughout. 



Island of Anticosti, Pursh ! G oldie. On the higher Rocky Mountains, 

 about lat. 52°, Drummond! and Mt. Rainer, Mr. Tolmie ! /?. Swamps of 

 the plains among tlie Rocky Mountains, Drtiminond ! — Heads 3-8, or in /3. 

 8-15, in a close corymb. Pappus in the sterile flowers denticulate; the 

 clavate tips either spatulate and obtuse, or lanceolate and acute. 



4. A. alpina (Gsertn.) : sterile stems short and ascending, or none ; leaves 

 villous-lomentose, at least on the lower surface ; the radical spatulate, the 

 cauline linear ; heads 3-5 in a terminal cluster, nearly sessile ; involucre 

 woolly at the base; the livid inner scales moslly erose-denticulate, obtuse in 

 the sterile, but acute or acumina/e in the fertile heads. — R. Br. I. c. ; Less, 

 in Linn<ea, 6. p. 221; Hook. ! I. c. ; DC. ! I. c. A. Labradorica, Nutt. ! in 

 trans. Amer. phil. soc. I. c. p. 406. Gnaphalium alpinum, Linn. ; Wahl. 

 fl. Lapp. p. 203. _ 



/3. monocephala : heads solitary or rarely geminate. — A. raonocepnala, 



DC. ! I. c. 



Greenland and Labrador ! Hudson's Bay ! and along the Arctic regions to 

 Kotzebue's Sound ! Unalaschka ! &c.— Smaller than the preceding. Pap- 

 pus in the sterile plant strongly clavate. 



5. A. dioica (Gfertn.) : sterile stems stoloniferous ; leaves silvery-tomen- 

 tose-canescent on the lower or on both sides (commonly glabrous above) ; the 

 radical spatulate, one-uerved or 3-nerved at the base ; the cauline linear- 

 lanceolate, appressed ; heads several, in a capitate corymb ; scales of the in- 

 volucre with erose-denticnlate mostly obtuse (white, ochroleucous, rose-color, 

 or purple) tips ; achenia perfectly smooth.— G^^rin. fr. 2. p. 410, t. 167 ; 

 Hook. ! I. c. ; DC. ! I. c. Gnaphalium dioicum, Linn. ; Engl. hot. t. 267 ; 

 Wahl.fl. Lapp. p. 202. 



