COMPOSlTiE. SoLiDAGO. 



numerous, and the attenuated and longer exterior involucral scales exactly 

 resemble them, giving the involucre a squarrose appearance. The extreme 

 forms would seem to belong to different species (although no other dif- 

 ference is observable) ; but a full suite of specimens furnishes every gradi- 

 tion between them. — No species could less deserve the name of S. petiolaris 

 than this, at least in its ordinary forms : if the leaves may be said to be 

 petioled, they are so slightly so, that we believe no author has identified the 

 plant by the ciiaracter ; but, as this is certainly the plant described in the 

 Horlus Kevvensis, as well as by Smith, we do not feel at liberty to reject it. 

 — For his S. erecta, Pursh cites Herb. Banks, mss. ; but there are no speci- 

 mens with this name in the Banksian herbarium : he not improbably had 

 the present species in view, to which his short character is not inapplicable. 

 — The S. ])etiolaris of the Berlin Garden, 1839 (and of Link. enum. ?) is 

 S. Virga-Aurea. The S. petiolaris, Tliuillier, of the Paris and some other 

 gardens, is S. Narbonensis, Pourr. (Vide S. data.) 



18. S. angusta : stem strict and simple, leafy, slightly scabrous ; leaves 

 lanceolate, mucronate-acute, tapering to the base, sessile, sparsely veined, 

 with a prominent midrib, glabrous, with ciliate-scabrous margins; the lower- 

 most obscurely serrate towards the apex; the others entire; heads (rather 

 large) in a contracted raceme; scales of the almost glabrous involucre lanceo- 

 late ; the outermost subulate, loose, or at length sfjuarrose-spreading, some- 

 what herbaceous; rays about 10, elongated; achenia glabrous. 



Alexandria, Western Louisiana, Dr. Hale! Arkansas near the Hot 

 Springs, Dr. Engelmann ! Sept. — Stem 3-4 feet high, virgate, very leafy 

 throughout, glabrous below, scabrous-puberulent towards the summit. Leaves 

 bright green above, pale beneatli, oblanceolate, ciliate with minute and close 

 uncinate hairs ; the midrib and the few veins rather prominent on the lower 

 surface ; the lower 3 inches or more in length, and nearly three-fourtlis 

 of an inch in width ; the upper gradually diminishing in size, and less veiny. 

 Heads resembling those of S. petiolaris, 2 to 4 upon the short peduncles, 

 which are disposed in a narrow somewhat crowded raceme 4-G inches long, 

 25-30-flowered. Involucre and pedicels apparently slightly viscid. Rays 

 conspicuous, deep yellow. Achenia and ovaries perfectly glabrous. 



19. S. stricta (Ait.) : smooth and glabrous throughout; stem strict and 

 very simple; leaves lanceolate, acute; the radical and lower cauline spar- 

 ingly appressed-serrate, tapering into winged somewhat sheathing petioles; 

 the upper sessile, entire; racemes (simple or compound) appressed, nume- 

 rous, forming a crowded and very strict virgate panicle, which is usually 

 leafy towards the base ; heads (rather small) 8-12-flowered ; scales of the 

 cylindrical involucre linear-oblong, obtuse; rays 5-6, small ; achenia gla- 

 brous.— ^i?. / Kew. (ed. 1) 3. ;?. 216 ,• Willd. spec. 3. p. 2062; Pursh, fl. 

 2. p. 540/ (excl. habitat) ; Richards, appx. Frankl. journ, ed. 2. p. 33 ; 

 Hook. ! fl. Bor.-Am. 2. p. 4 (excl. Saskatchawan spec.) ; DC. prodr. 5. p. 

 340 ? S. uliginosa, Nutt. ! in jour. acad. Philad. 7. ^j. 101, partly ? 



Sphagnous swamps, Newfoundland ! Hudson's Bay! {Herb. Banks) &c. 

 to ^iassachusetts! and the Western part of New York ! July-Aug. — Stem 

 1-3 feet high, virgate, usually purple, perfectly smooth to the summit, even 

 the peduncles and pedicels glabrous or very nearly so. Leaves of a firm 

 texture, with a strong midrib, and several straight veins, the veinlets of the 

 pale lower surface minutely reticulated: the radical (appearing in the au- 

 tumn preceding flowering, and remaining through the winter) 6-10 inches 

 long, an inch to an inch and a half wide in the middle, tapering to each end 

 (the primordial obtuse), the base attenuate into a carinate petiole about the 

 same length ; the lower cauline similar, but with shorter sheathing petioles ; 

 the upper gradually reduced in size and breadth. — A northern species, 

 distinguished by its smoothness, elongated-lanceolate willow-like leaves (the 



