Adams — On the Germination of the Seeds of some Dicotyledons. 495 



Euphrasia officinalis Linn. — Seeds (1910) planted on 3rd October, 1910. On 



8th April, 1911, several had germinated. On 8th November, 1911, no 



more had germinated. 



Cotyledons subrotund, sessile, entire, glabrous, 1-1;^ mm. by f-f mm. 

 Lathraea Sqiiamaria Linn. — Seeds (1909 probably) planted on 17th October, 



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

 Melampyrum pratense Linn. — Cotyledons persistent nntil tlie flowers appear, 



obovate-spatulate, tapering to the base, entire, obtuse, glabrous, 



20-44 mm. by 5-9 mm. 

 Pedicularis palustris Linn. — Seeds (1910) planted on 3rd October, 1910. On 



19tli June, 1911, none had germinated. On 13th July, 1911, one had 



germinated, and more seeds were sown. On 6th November, 1911, no 



more had germinated. 



Cotyledons shortly petiolate, blade shortly oblong, sliglitly indented 



at the tip, entire, glabrous. Petiole 1 mm. long, blade 3J mm. by 2 mm. 

 Rhinanthiis Crista-GalU Linn. — Forty seeds (1910) planted on 3rd October, 



1910. On 1st April, 1911, seventeen had germinated, and ten of these 



were removed. On 27th May, 1911, five only survived, and these were 



pale and sickly-looking. On 19th June, 1911, all had died down. On 



8th November, 1911, no more had germinated. 



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



by 3 mm. First pair of leaves crenate, hairy. 

 Scrophularia aquatica Linn. — Seeds (1909) planted on 15th July, 1911. On 



28th July, 1911, some had germinated. 



Cotyledons petiolate, blade deltoid-subrotuud, entire, obtuse, 



glabrous. Petiole 2J mm. long, blade 2\ mm. by 3 mm. 

 Veronica Beccabimga Linn. — Seeds (1910) planted on 14th July, 1911. On 



3rd June, 1912, none had germinated. 

 V. montana Linn. — Cotyledons petiolate, blade rotundate, entire, obtuse, 



glabrous. Petiole lJ-2 mm. long, blade 4^5 mm. by 4-4^ mm. 

 V. scutellata Linn. — Seeds (1910) planted on 14th July, 1911. On 28th 



October, 1911, none had germinated. 



SOLANACE.®. 



Hyoscyamu.^ niger Linn. — Seeds (age uncertain) planted on 15th July, 1911, 



On 28th October, 1911, none had germinated. 

 Solanum Dulcamara Linn. — Seeds (1910) planted on 3rd October, 1910. On 



29th April, 1910, several had germinated. 



