Adams — On the Germination of the Seeds of some Dicotyledons. 479 



S. Sophia Linn. — Seeds (age uncertain) planted on 15th July, 1911. On 



14th October, 1911, two liad germinated. 

 I'hlaspi orvense Linn. — Fifty seeds (age uncertain) planted on 22nd October, 



1910. On 23rd September, 1911, none had germinated. 



DlPSACACE^. 



Dipsacus Ftdlonum Linn. — Seeds (1910) planted on 18th April, 1911. On 

 28th October, 1911, several liad germinated and had formed a number 

 of leaves. 



Scabiom arvenm, Linn. — Seeds (1910J planted on 12th July, 1911. On 

 28th October, 1911, none had germinated. 



S. succinct Linn. — Seeds (1910) planted on 8th October, 1910. On 29th April, 



1911, several had germinated. 



Cotyledons oblong-elliptical, tapering at the base, obtuse, entire, 

 glabrous, 7J mm. by 3 mm. First leaf petiolate, blade rotundate, hairy. 



Empetrace^. 



Empetnim nigrum Linn. — Seeds (age uncertain) planted on 22nd October, 

 1910. On 3rd June, 1912, none had germinated. 



Ericace^. 



Arbutus Unedo Linn. — Seeds (1910) planted on 19th April, 1911. On 



8th June, 1912, none had germinated. 

 Dabeocia cantabrica Rendle and Britten. — Seeds (1909) planted on 19th 



October, 1910. On 28th October, 1911, none had germinated. More 



seeds (1910) were planted on 12th July, 1911. On 28th October, 1911, 



none had germinated. 

 Erica cinerea Linn. — Seeds (1910) planted on 22nd June, 1911. On 28th 



October, 1911, none had germinated. 

 Vaccinium MyrtillusJAnw. — Seedlings obtained at Lough Bray, Co. Wicklow, 



on 7th June, 1912. 



Cotyledons sessile, oblong to slightly obovate or elliptical, obtuse, 



entire, glabrous, 2|-3 mm. by 1^ mm. 



BUPHORBIACEJE. 



Euphorbia exigua, Linn. — Seeds (1910) planted on 18th April, 1911. On 

 27th May, 1911, one had germinated. More seeds were sown on 13th 

 July, 1911. On 25th July, 1911, nine had germinated. 



