478 Scientific Proceedings. Royal Dublin Society. 



Arahis Thnliana Linn. — Seeds (age uncertain) planted on 15th July, 1911. 



On 16th September, 1911, several had germinated, and had produced 



several leaves. 



Cotyledons petiolate, blade ovate-subrotund, entire, obtuse, glabrous. 



Petiole 1 mm. long, blade 2 mm. by 1| mm. First leaf simple, entire, 



hairy. 

 Barbarea mdgaris Br. — Seeds (1910) planted on 12th July, 1911. On 16th 



September, 1911, several had germinated. 



Cotyledons petiolate, blade subrotund, entire, glabrous, faintly 



notched. Petiole 2i-5 mm., blade 3 mm. by 1|-2| mm. 

 Brassica arvensis Ktze. — Seedlings found on 8th April, 1910, in County 



Dublin. 



Cotyledons petiolate, blade obreniform, entire, glabrous. Petiole 



6-9 mm. long, blade 6-8 mm. by 8-10| mm. First leaf simple, hairy. 

 Capsella .B«(?'sa-/)as^ons Medio. — Seeds (1911) planted on 21st July, 1911. On 



28th July, 1911, several liad germinated. More seeds were sown on 



16tli September, 1911, and on I4th October, 1911, these had germinated. 

 Carclamine hirsuta Linn. — Seeds (1910) planted on 18th April, 1911. On 



24th June, 1911, four had germinated. 

 Cochlearia officinalis Linn. — Seedlings found in Co. Dublin, on 8th April, 



1910, and 24th October, 1911. 



Cotyledons petiolate, blade rather fleshy, rotund, entire, slightly 



notched at base and apex. Petiole 4-7 mm. long, blade 2J-5i mm. by 



3^5| mm. 

 Lepiditmi heteropliyllum Benth. — Seeds (1910) planted on 26th April, 1911. 



On 28th October, 1911, several had germinated. Some more seeds were 



planted on 12tli July, 1911, and on 28th July, 1911, several had 



germinated. 



Cotyledons petiolate, blade oblong-obovate, tapering into the petiole, 



entire, obtuse, glabrous. Petiole 2^ mm., blade 6 mm. by .3-4 mm. 

 Badicula Nasiurtium-aquaticum Rendle and Britten. — Seeds (1910) planted 



on 22nd June, 1911. On 8th May, 1912, one had germinated. 

 i2. ^afesim Moench.— Seeds (1910) planted on 18th April, 1911. On 24th 



June, 1911, one had germinated. On 28th October, 1911, no more 



had germinated. 



Cotyledons petiolate, blade subrotund, faintly notched at the tip, 



entire, glabrous. Petiole 3 mm. long, blade 3|mm. by 2|mm, First 



leaf simple, second leaf lyrate. 

 Sisymbrium officinale Scop.— Seeds (1910) planted on 12th July, 1911. On 



28th July, 1911, several had germinated. 



