474 Scientific Proceedings, Royal Dublin Society. 



CoMPOSITjE. 



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

 1911, several had germinated. Seedlings found in Co. Dublin on 8th 



April, 1910, and 6th May, 1910. Cotyledons spatulate, tapering at the 



base, united below, entire, glabrous, 19-35 mm. by 6-12 mm. 

 Artemisia Absinthium Linn. — Seeds (1910) planted on 19th April, 1911. On 



28th October, 1911, none had germinated. 

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



1911, several had germinated. Cotyledons sessile, broadly elliptical, 



entire, obtuse, glabrous, 2|-4 mm. by 1^-2 mm. First leaf hairy. 

 Aster Tripolium Linn. — Seedlings found in Co. Dublin on 8th April, 1910. 



Cotyledons fleshy, almost sessile, broadly lanceolate, tapering at the base, 



entire, obtuse, glabrous, 9-10 mm. by 4 mm 

 Bellis perennis Linn. — Seeds (1911) planted on 14th July, 1911. On 16th 



September, 1911, many had germinated. 

 Carduus crispus Linn.— Seeds (1910) planted on 20th April, 191 1. On 24th 



June, 1911, several had germinated. 



Cotyledons spatulate, entire, glabrous, 10i-12| mm, by 6-7 mm. 



First leaf hairy. 

 G. pycnocephalus Linn. — Seeds (1910) planted on 12tli July, 1911. On 26th 



July, 1911, twelve had germinated, the first ordinary leaf being visible. 

 Cotyledons shortly petiolate, blade subrotund — oblong, entire, slightly 



notched at the tip, glabrous, 13 mm. by 8 mm. First leaf hairy, with 



spiny margin. 

 Carlina vulgaris Linn. — Twenty-five seeds (1910) planted on 5th October, 



1910. On 1st April, 1911, several liad germinated. 



Cotyledons almost sessile, elliptical, entire, obtuse, glabrous, 4-4^ mm. 



by 2-3 mm. First leaf cottony. 

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



July, 1911, several had germinated. Cotyledons obovate — subrotund, 



tapering to the base, entire, obtuse, glabrous, 9 mm. by 3|-4mm. 

 G. Scabiosa Linn. — Twenty-five seeds (1909 probably) planted on 18tli 



October, 1910. On 29th April, 1911, several had germinated. 



Cotyledons spatulate, gradually tapering to the base, entire, glabrous, 



with evident midrib, 20-23 mm. by 5-5J mm. First leaf lanceolate, 



hairy. 

 Chrijsanthemum Leiicanfhemuni Linn. — Cotyledons spatulate, entire, 4 mm. 



oy 2 mm. 



