CORN SOW- I'Ulsri.K 



1.^9 



is tall, simple, with radical Iraws (li\ idcd, with IoIh-s cnlar^^cd upwards 

 the lobes turned hack, heart-shaped at the base, the leaves being- 

 alternate, clasping', smooth, pale below, dark-green above. The edges 

 are lined with prickles. Some leaves are linear-acute higher up. 



The (lowers are yellow, borne on tlower-stalks which arc higiiK 

 glandular, with black nr brown hairs, and in a sort ol umbel also 

 like the leaf-like organs, which arc unc(|ual, keeled, very hairy, and 

 glandular. The fruit is 

 rough and transversely 

 downy, not beaked. The 

 pappus is stalkless, the 

 hairs numerous. 



The plant is i .', ft. 

 high. Flowers are to be 

 seen in J uly and August. 

 The plant is perenni.d. 



The flowers are as 

 conspicuous as those of 

 the Dandelion, and biiik 

 upon much the same 

 [)lan, attracting many 

 insects, though hidden, 

 or rather appearing just 

 above the corn before 

 it is ripe. The corolla is 

 yellow, like that of most 

 hermaphrodite Horets in 

 Compositae. Kach floret 

 is tubular, with a white 

 tube, which is narrow 

 and beset with hairs 



above, to preserve the honey at the Ijase of the stigmas, and the limb 

 is yellow, as long as the tube, with edges rolled from the back inwards. 



The stamens unite to form a cylinder, the two threadlike stigmas 

 are bent inwards, and the style is hairy abo\e, with slender lobes. 

 Thus cross -pollination is rendered possible l)y the sweeping of the 

 pollen out of the lube away from the stigma. The plant is \isited 

 by the Hone\- P)ee, Bonihiis, /'an unfits, Ha/iiiiis, iXoiiiadla, Miqac/ii/c, 

 Osviia, Syrphida!, Eristalis, C/icl/osia. Conopida-. Sin/s. Lepido|)tera, 

 Hespcria, Coleoptera, Curculionida,-, SpcDiiopliagiis cai-dui. Malacoder- 

 mata, Malacliins. 



C"i)KN S(i\v Thistle (Sonchus amensis, L.) 



