476 Scientific Proceedings, Royal Dublin Society. 



obtuse, glabrous. Petiole 4 mm. long, blade 4-5 mm, by 3|-4 mm. 



First leaf simple, petiolate, hairy, with subrotuud, distantly serrate 



blade. 

 Leontodon autumnalis Linn. — Seeds (1910) planted on 12th July, 1911. On 



28th July, 1911, several had germinated. 



Cotyledons 12 mm. by IJ mm., with a long petiole, and oblong, 



entire, obtuse, glabrous blade. 

 L. nudicauKs Sol. — Seeds (1910) planted on 6th October, 1910. Several liad 



germinated on 19th November, 1910. 



Cotyledons lanceolate, tapering to the base, obtuse, entire, glabrous, 



9-11 mm. by 2 mm. First leaf hairy. 

 Matricaria Chamomilla Linn. — Seeds (1910) planted on 19th April, 1911. 



On 28t,h October, 1911, none had germinated. 

 M. inodora Linn. — Seedlings found at Dalkey on 6th May, 1910. 



Cotyledons somewhat flesliy, obovate, tapering towards the base, 



glabrous, 3|-5 mm. by 2-2| mm. First leaf pinnately lobed. 

 Senecio erucifoliiis Linn. — Seeds (1910) planted on 8th October, 1910. On 



27th May, 1911, two had germinated. More seeds were sown on 



13th July, 1911, and on 2ud October, 1911, five of these had 



germinated. 

 *S^. sylvaticus Linn.— Seeds (1910) planted on 10th October, 1910. On 27tli 



May, 1911, three had germinated. On 23rd September, 1911, no more 



had germinated. 



Cotyledons elliptical, tapering at the base, entire, rounded at the 



tip, glabrous, 7g-10 mm. by 2-3J mm. First leaf hairy, distantly 



serrate. 

 Solidago Virgauren Linn. — Seeds (1910) planted on 12th July, 1911. On 



28th October, 1911, none had germinated. 

 Sonchus arrensis Linn. — Seeds (1910) planted on 12th July, 1911. On 28th 



October, 1911, none had germinated. 

 S. oleraceits Linu. — Seeds (1910) planted on 12th July, 1911. On 28th July, 



1911, several had germinated. Seedlings found at Greystones on 4th 



June, 1906. 



Cotyledons, 45-65 mm. by 2-^-3| mm., shortly petiolate, blade ovate 



to orbicular, entire, obtuse, glabrous. First leaf petiolate, blade 



orbicular, dentate, hairy. 

 Taraxaeum officinale Weber. — Seeds (1910) planted on 18tli April, 1911. On 



23rd September, 1911, none liad germinated. 



Cotyledons oblong, entire, glabrous, obtuse or slightly notched, 



tapering to the base, 8-11 mm. by Sj mm. 



