339 



Brown correct in his view of this genus. It is diflicult to 

 suppose that part to be the nectary which is so termed in 

 Engl. Fl. ; it contains, not merely surrounds, the germen, and 

 is elevated by a short stalk above the (so termed) corolla, 

 and consequently above the germen and the receptacle of the 

 flower. The larger aivn is inserted near the base of the 

 glume, opposite the larger valve of the calyx, as also the 

 larger valve of the " nectary." Germen spurred below. — No 

 appearance of nectaries, such as are usually found in grasses. 



12. Valeriana dioica. — May 19th, 1827. — The plant is fur- 

 nished with horizontal shoots, but I do not think the 7'oot a 

 creeping one. Fertile flowers much smaller than the others. 

 Stigma, in the really fertile flowers, deeply three-cleft ; when 

 stamens occur on the fertile plant, they are short, abortive, 

 and enclosed within the tube of the corolla. Style deciduous. 

 Stem with four winged angles. 



13. Schoenus nigricans. — June, 1826. — Leaves semi-cylin- 

 drical, with roughish edges, shorter than the stem. The 

 " scales at the base of the germen" appear to me more like 

 short spiny bristles, 5 or 6 in number, attached, as Smith 

 observes, to the receptacle, but certainly placed on the out- 

 side of the filaments ; which is the case also in various species 

 of Scirpus, and, as I am inclined to believe, in all instances 

 where bristles are formed at all. 



( To be continued.^ 



[TAB. LXVII. LXVIIL] 



DESCRIPTION OF A NEW SPECIES OF MACRO- 

 PODIUM, 

 Found by Mr. David Douglas in North West America. 



The genus Macropodium was established in the 4th vol. of 

 the 2d edition of the Hortus Kewensis, upon the Cardamine 

 nivalis of Pallas, by our illustrious countryman Mr. Brown, 

 and thus characterised—" Siliqua pedicellata, linearis. Coty- 



