Pjcm.] XLVL COMPOSITE : CICHORACEA?. 209 
1. T. pratensis L. ( yellow G.) ; glabrous, involucre about as 
long or twice as long as the corollas, leaves undivided acumi- 
nate with a dilated base channelled, peduncles slightly thick- 
ened at the very summit. — a. involucre about as long as the 
corollas. E. B. t. 434. — /3. involucre twice as long as the 
corollas. T. minor Fries. T. major Hook. Hr. FI. ed. 2. (not 
perhaps of Jacq.'). 
Meadows and pastures, frequent. $ . 6,7. — Stem 1 — 2 ft. high. 
Leaves of 13. more attenuate than in a. Invol. 8-leaved. Flowers 
yellow, closing every day before noon ; head of fruit large. Achenes 
of the florets of the circumference striate and squamosely-scabrous 
or toothed in this and the next. Pappus very feathery, elevated 
on a long stalk. 
2. T. *porrifolius L. (jpurple G., or Salsify ) ; involucre 
longer than the corollas, leaves undivided straight acuminate 
slightly dilated above the base, peduncles much thickened 
upwards. E. B. t. 638. 
Moist meadows, in several parts of England ; but very local. 
About Glasgow. $. 5,6. — Stem 3 — 4 ft. high. Flowers large, 
purple, closing before noon, or in rainy weather. The root was for 
merly cultivated for culinary purposes. 
2. Helminthia Juss. Ox-tongue. 
Achenes transversely striate, beaked. Pappus feathery. 
Recept. naked. Invol. double ; inner of 8 — 10 close scales, 
outer of 3 — 5 shorter, lax, leafy ones. — Name : kX/uvUiov, a small 
kind of worm ; from the form of the fruit. 
1. H. echioides Gaertn. (bristly O.) ; outer scales of the in- 
volucre 5 cordate crenate, stem erect hispid. Picris L. : E. B. 
t. 972. 
Borders of fields, especially in a clay soil. In Scotland, near 
Berwick-upon-Tweed, very rare. About Dublin. 0. 6 — 10. — 
Stem 2 — 3 ft. high, stout, hispid, with numerous rigid hairs, springing 
from tubercles. Lower leaves lanceolate, upper ones cordate, am- 
plexicaul. Flowers small, yellow. 
3. Picris Linn. Picris. 
Achenes transversely striate, with scarcely any beak. Pap- 
pus with the inner hairs feathery. Recept. naked. Invol. of 
many compact, upright, equal scales, with several external small 
linear ones. — Name : tuk pog, bitter, as are many of this tribe. 
1. P. hieracioides L. (Hawk-weed P.) ; stem rough with 
viding into two branches, which hear the minute stigmas. This style is not 
swollen, as in the Thistlegroup. 
Fig. 3. Extremity of the style. 
Fig. 4. a receptacle, with the involucre bent back in age, and all the fruit and 
seed-vessels having fallen away but one. 
vie. s, A fruit laid open, showing the erect seed in the cavity or cell. 
All but figs. 1. and 2. more or less magnified. 
