306 SYNGENESIA POLYGAMIA -&QUALIS. [CL. XIX. 



POLYGAMIA vEQUALIS. 



1. TRAPO'GON. GOAT'S-BEARD. 



Common calyx simple, of several lance-shaped equal scales, 

 arranged alternately in two rows, all connected at the base, 

 permanent. Compound corolla imbricated, uniform. Florets 

 numerous, all perfect, strap-shaped, abrupt, five-toothed. Fila- 

 ments five, hair-like, very short ; anthers united into a tube. 

 Germen inversely egg-shaped. Style thread-shaped, as long as 

 the anthers ; stigmas two, revolute. Seeds inclosed by the per- 

 manent calyx, one to each floret, oblong, angular, striated, 

 tapering at both ends, crowned by the seed-down, which is 

 feathery and supported on a long stalk ; receptacle naked, flat, 

 rough. Name from tragos, a goat, and pogon, beard. 366. 



1. T.pratensis. Yellow Goat's-beard. Calyx about as long as the 

 corolla ; leaves tapering, keeled, dilated at the base, smooth ; flower- 

 stalk cylindrical. The whole plant smooth, abounding with 



milky juice : stems erect, round, leafy, from one to two feet high : 

 flowers yellow. Biennial : flowers in June : grows in pastures. 

 Eng. Bot. vol. vii. pi. 434. Eng. Fl. vol. iii. p. 337. A variety of this 

 specits, with the calyx much longer than the corolla, and the 

 flower- stalk slightly enlarged upwards, is the T. Major, Greater 

 Goat's-beard, of some. 1105. 



2. T. porrifolius. Purple Goat's-beard. Calyx much longer than 



the corolla ; leaves tapering ; flower-stalk enlarged upwards. 



The whole plant smooth : stem three or four feet high, erect : flowers 

 purple. Biennial : flowers in May and June : grows in moist mea- 

 dows and pastures, but is not indigenous : rare. Eng. Bot. vol. 

 ix. pi. 638. Eng. Fl. vol. iii. p. 338. 1106. 



2. PI'CKIS. OX-TONGUE. 



Common calyx double ; the outer of several flat scales ; the 

 inner egg-shaped, of many equal parallel leaves. Corolla com- 

 pound, imbricated, uniform ; florets numerous, perfect, strap- 

 shaped, abrupt, five-toothed. Filaments five, hair-like, very 

 short ; anthers united into a tube. Germen nearly egg-shaped. 

 Style thread-shaped, as long as the stamens ; stigmas two, re- 

 flected. Seeds one to each floret, swelled, obtuse, transversely 

 wrinkled ; seed-down feathery, sessile or stalked. Receptacle 

 naked, dotted. Name frompicros, bitter. 367. 



1. P. echioides. Bristly Ox-tongue. Outer calyx of five broad, 



prickly scales ; seed-down stalked ; leaves waved. Stem two or 



three feet high, round, furrowed : lower leaves lance-shaped, upper 

 heart-shaped, embracing the stem : flowers bright-yellow. Annual : 

 flowers in June and July : grows in hedges and borders of fields, in 

 England, and about Dublin : frequent. -Eng. Bot. vol. xiv. pi. 972. 

 Eng. Fl. vol. iii. p. 339. 1107. 



2. P. hieracioides. Hawkweed Ox-tongue. Outer calyx of nume- 

 rous scales, much shorter than the inner ; leaves lance-shaped, 



waved, the lower ones toothed ; seed-down sessile ; stem rough. 



Stem three feet high, furrowed, rough : leaves lance-shaped, acute, 



