1887-88.] Frititfi of the Genus Anemone. 175 



1. Hqmtica, DiU * Cat. Plant. Giss., p. 108, Tab. v., 1719. 



The second year after the seed has been sown, green 

 cotyledons appear above ground. Fruit short or longish, 

 oviform, short hairy ; style short. At the base of the fruit 

 an apophysis is formed from the luxuriantly developed cells 

 of the epidermis. No special organ for the dispersion of the 

 seeds. 



2. Si/lvia, Gaud.,t Flora Helv., iii. p. 490, 1828. 

 Anemonanthea, DC, Syst., i. p. 196, 1818, pr. prt. 



In the second year there appears above ground one leaf, 

 rarely two ; cotyledons under ground. Fruit oviform or 

 almost round, covered with short hairs, rare, and of equal 

 length ; style short. No special organ for the dispersion of 

 the seeds. 



(B) Embryo bicotyledonous ; cotyledons generally appear 

 above ground some weeks after dissemination. 



3. Omalocarpus, DC.,| Sijst., i. p. 212, 1818. 



Achenes flat (flattened at the side), wing-like, hairless ; 

 style very short. The petioles of the cotyledons are joined 

 in the germs up to the lamina. Owing to its form, the achene 

 is particularly adapted for being transported to a considerable 

 distance by the wind. 



4. Anemonidium, Spach,^ Hist. v4g. phan., vii. p. 248, 1839. 



Achenes flattened at the side, spongy at the margins, 

 which resemble thick wings, hairless or shortly hairy. The 

 spongy margins (or wings), whose air-filled cells are impervious 

 to water, are instrumental as a means of dissemination, not 

 only by wind, but also by water, 



* H. triloba, Chaix ; ff. transsylvanica, Fuss. ; H. Falco'iieri, Thorns. 



+ Anemone nemorosa, L. ; A. ranunculoides, L. ; A. trifolia, L. ; A. altaica, 

 Fisch. ; A. cmrulea, DC; A. umbrosa, C. Mey. ; A. udensis, Traut et Mey. ; 

 A. reflexa, Steph. ; A. nikoensis, Max.; A. deltoidea, Hook.; A. appeyiina, L. ; 

 A. stolonifera, Max.; A. haikalcnsis, Turcz. ; A. flaccida, Fr. Schmidt; A. 

 Delavayi, Franch. 



X Anemone narcissijlara, L. ; A. elongata, Don; A. 2^olyani}ios, Don; A. 

 tctvasepala, Royle ; A. dcmissa, Hook, et Thorns. 



§ Anemone pcnnsylvanica, L. ; A. dichotoma, L. 



