THAGOl’OGON. 
189 
piunatifiil nearly pflabrous, stalk brauclu'tl scaly and tbickened 
I upwards, involucre glabrous or bairy. — Aparyia Sin., E. B. HdO. 
Leontodon Koch. — L. all radical, tapering at the base, often with 
long linear spreading segments, usually somewhat hairy particu- 
larly on the midrib beneath. Involucre nearly always hairy. 
! I’apims brownish. — fi. Taraxaci ; 1. glabrous, stalk mostly simple, 
I involucre shaggy with greenish-black hairs. Apargia Taraxaci 
Sm., E. B. li().‘). not Willd. — y. sordidus; 1. bairy, st. branched, 
inv. as in /3, plant very large. — Meadows and pastures. /3. lofty 
mountains, y. highland glens, S. P. VIII. 
42. Tr.agoi’OGON Linn. 
1. T. minor (Fries); involucre about twice as long as the 
, florets, jieduneles slightly thickened at the very summit, 1. taper- 
ing into a long slender point from a dilated base. — T. major 
Hook, not Jaeq. — St. 2 feet high, branched, erect. L. clasping 
the stem, gradually tapering into a very long acuminated point. 
I Involucre 8-leaved in 2 rows. Florets yellow, truncate, 5-toothed. 
Fr. of the marginal florets angular and striated, the angles squa- 
I moscly toothed, the interstices tubercular. — Meadows and jias- 
tures. B.? VI. VII. Smaller Goaf s-heard. E. S. 
2. T. pratensis (L.); involucre equalling or shorter than the 
I' florets, Jieduneles slightly thickened at the very summit, 1. linear 
keeled dilated at the base. — E. B. 434. — St. H — 2 feet high, 
1 branched, erect. L. clasjiing the stem, narrowing ujiwards and 
terminating in a very long linear-acuminate jioint. Involucre 8- 
leaveil in 2 rows. Florets yellow, truncate, with 5 teeth. There 
are 2 forms of this plant ; (a) with the involucre equalling the 
florets, and the fruit of the marginal florets obsoletely striated 
and squamosely-scabrous throughout ; the other (b) with the in- 
I volucre rather shorter than the florets and the marginal fruits 
(in my sjiecimen) yellow' slightly furrowed and quite smooth. — 
Meadows and jiastures, less frequent than the jireceding. B. ? 
VI. Field Goafs-beard. 
f3. T. porrifolius (L.); involucre longer than the florets, pe- 
duncles much thickened upwards, 1. tapering slightly dilated just 
above the base. — E. B. (i38. — St. 3 — 4 feet high, erect, branch- 
ed. L. slightly broader just above the base then gradually nar- 
rowing to an acute jioint. Heads twice as large as in the tw o jire- 
ceding. Involucres usually ^ longer than the florets, but some- 
times only equalling them. Florets purjile. Marginal fruits 
squamosely-tubercular throughout but jiarticularly on the ribs. 
— T. major is jirobably only a yellow-flowered variety of this, as 
stated by Fries, but it has not been found in Britain. — Moist 
pastures near rivers. B. VI. Salsify. 
