206 45. COMPOSITE. 



Marginal fr. angular, striate ; angles squamously toothed ; in- 

 terstices tubercled. — Meadows and pastures. B. ? VI. VII. 



E, S. I. 



2. T. praten'sis (L.) ; inv. equalling or shorter than the flowers, 

 ped. slightly thickened at the very top, 1. tapering from a di- 

 lated base to a long linear acute point keeled. — St. IJ — 2 feet 

 high, branched, erect. L. clasping the stem. Phyll. 8, in 2 

 rows. Fl. yellow, truncate, 6-toothed. Anth. yellow. There 

 are 2 forms of this plant : — (a) inv. equalling the fl., marginal 

 fr. obscurely striate and rough throughout {Sy. E, B. 798) ; 

 (J) inv. rather shorter than the fl., marginal fr. (in my speci- 

 mens) yellow slightly furrowed and quite smooth {E. B. 484). 

 — Meadows and pastures, less frequent than the preceding. B. ? 

 VI. E. 8. 1. 



*3. T. porrifdlius (L.) ; inv. longer than the flowers, ped. much 

 thickened upwards, 1. tapering slightly dilated just above the 

 base. — E. B. 638. — St. 3 — 4 feet high, erect, branched. L. 

 slightly broader just above the base, then gradually narrowing 

 to an acute point. Heads twice as large as in the two preceding. 

 Inv. usually \ longer than the fl., sometimes only equalling or 

 even falling short of them. Fl. purple. Marginal fr. with 

 scalelike tubercles throughout but particularly on the ribs. — 

 Moist meadows. B. VT. Salsify. B. 



40. Pi'cEis Linn. 



1. P. hieracicfides (L.) ; st. rough with forked and hooked 

 bristles, 1. linear or lanceolate dentate or sinuate, upper 1. some- 

 what clasping, heads solitary terminating the stem and branches, . 

 outer phyll. lax oblong bristly on the keel glabrous on the mar- 

 gin, fr. constricted just below the pappus. — E. B. 196. — St. 1 — 

 3 feet high, divaricately branched above, irregularly corymbose, 

 very rough. Florets yellow. — P. arvalis (Jord.) (branches 

 ascending, heads in an umbellate corymb) passes gradually into 

 the type.— Dry banks. B. VII.— IX. E. 



41. Helmht'thia Jiiss. Ox-tongue. 



1. S. echioides (Gaert.) ; st. erect hispid with rigid 3-fid and 

 hooked hairs from tubercular bases, phyll. 5 ovate-cordate. — 

 E. B. 972. — St. 2 — 3 feet high, branched, covered, as well as 

 the leaves and involucre, with strong prickles springing from 

 white tubercles and with 3 minute hooks at the apex (glochi- 

 date). L. clasping. — Dry banks. A. VII. — IX. E. I. 



