American Species of the Genus Anemone. 231 



tioribus, lateralibus ad f longitudinis v. plerumque fere usque ad 

 basin 2-partitis, intermedio ad -J-f partem trifido, lobis obverse v. 

 subrhornbeo-lanceolatis, sepalis 1.2-1.5 cm. longis ad basin brevius 

 et minus angustatis, staminibus dimidium floris aequantibus, antheris 

 obtusissimis v. truncatis ; A. Antucensis, Poepp. Frag. Syn. Plant. 

 Chil. p. 21, Gay Chil. i, 25, quae cum A. Sellowii magnitudine floris 

 congruit, ab utraque longe recedit foliolis sessilibus, involucro amplo 

 ad 6 cm. longo, involucello segregato, sepalis 6 (an semper?) dorso 

 puberulis." 



Not seen by me. 



\ \ Lateral peduncles bracted at the base, close to the primary involucre. 

 Mexican species. 



24. Anemone Mexicana, H. B. K. 



A. Mexicana, H. B. K., Nov. Gen., v, 33 (1821). 



Erect, villous-pubescent, 30-50 cm. high. Radical leaves slender-petioled, 

 3-parted, the divisions broadly oval, narrowed, or cuneate at the base, deeply 

 incised and coarsely dentate with mucronate teeth ; leaves of the involucre 

 two, sessile or petioled, similar to the radical ; involucre 1-4-flowered, the first 

 peduncle naked, the others bracted at the base ; flowers white, about 2^ cm. 

 broad ; sepals 4-6, oval or somewhat obovate, obtuse ; head of fruit globose- 

 ovoid ; receptacle pubescent ; filaments very slender, 2-3 mm. long ; achenia 

 ovoid, slightly pubescent, narrowed at the apex, tipped with a short style. 



Distrib. Mexico: (Jurgensen, 240; Parkinson); Zinapan (Coul- 

 ter, 654) ; Oaxaca (Galeotti, 4540) ; San Luis Potosi (Schaffner, 30) ; 

 Santa Rosa (Duges); Chiapas (Ghiesbrecht, 132). 



Type in Herb. Humboldt, Bonpland and Kunth at Paris. 



Said by Mr. Hemsley (Bot. Biol. Am. Centr., i, 5) to occur also 

 in the United States, but I have seen no specimens from north of 

 the Rio Grande. 



25. Anemone Hemsleyi, n. sp. 



Erect, 25-60 cm. high, the petioles and peduncles densely pubescent. Radi- 

 cal leaves petioled, 3-parted into ovate slightly stalked, acuminate, sharply 

 and irregularly serrate segments ; leaves of the involucre 2, short-petioled, very 

 broadly ovate, obtuse or truncate at the base, 3-cleft to beyond the middle, the 

 divisions acute or acuminate, sharply serrate and sometimes slightly incised ; 

 involucre 3-6-flowered, the first peduncle naked, the others bracted at the 

 base, as in A. Mexicana; flowers white (according to Linden), 3-4 cm. broad ; 

 sepals 5 in the specimens seen, broadly oval, obtuse ; head of fruit oblong ; 

 receptacle densely pubescent ; achenia oblong, glabrous, 5 mm. long, tipped 

 with a short style. 



Annals N. Y. Acad. Sci., VI, Dec. 1891.— 16 



