Adams — On the Germination of the Seeds of some Dicotyledons. 493 



cotyledons sparsely hairy. Petiole Imra. long, blade 4 mm. by 2 mm. 

 First leaf simple, hairy, petiolate, cordate, with serrate margin. 

 R. saxatilis Linn. — Two seeds (1907) -planted on 6th May, 1911. Oa 14th 

 October, 1911, none had germinated. 



RuBIACEjE. 



Asjxnila ci/nmwhica Linn. — Seeds (1910) planted on 19th April, 1911. On 



28th October, 1911, none had germinated. 

 Galium Aparme Linn.— Seeds (1910) planted on 26th April, 1911. On 26th 



May, 1911, many had germinated, and had produced the first leaves. 

 G. boreale Linn. -Seeds (1909) planted on 6th May, 1911. On 8th July, 

 1911, one had germinated, and on 14th July, 1911, anotlier had 

 germinated. On 14tli October, 1911, no more had germinated. 



Cotyledons shortly petiolate, blade subrotund-ovate, almost obtuse 

 entire, glabrous. Petiole 2 mm. long, blade 3-4 mm. by 2J-3 mm. 

 First leaves in whorls of four, two of tliese being much larger than the 

 other two. 

 G. erectwii Hiids. — Seeds (1910) planted on 19th April, 1911. On 19th June, 

 1911, one had germinated. On 28th October.. 1911, no naore had 

 germinated. 



Cotyledons petiolate, blade ovate, entire, obtuse, glabrous. Petiole 

 3 mm. long, blade 7 mm. by 4J mm. 

 G. Mollugo Linn.— Seeds (1910) planted on 19tli April, 1911. On 14t]i July, 

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

 germinated. 



First leaves of seedling in whorls of four, all of the same size. 

 G. 'cerum Linn.— Seeds (1910) planted on 12th July, 1911. On 16th 

 September, 1911, many had germinated. 



Cotyledons petiolate, blade oblong, slightly notched at the tip, entire, 

 glabrous. Petiole 1-1^ mm. long, blade 6 mm. by 2-2^ mm. First 

 leaves in whorls of four. 

 llubia peregrina Linn. — Ten seeds (1909) planted on 17th October, 1910. On 

 13th May, 1911, one had germinated, and on 20th June, 1911, another 

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



Cotyledons subterranean. First leaves in whorls of four, two being 

 larger than the other two. 

 Sherardia arvensu Linn. — Seeds (1910) planted on 18th April, 1911. On 27th 

 May, 1911, three had germinated. On 13th July, 1911, two more had 

 germinated, and more seeds were sown. On 26tli July, 1911, many had 

 germinated. 



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