99 
The subsequent discovery of A. Wrightii at Tantoyuca by 
Ervendberg extended the known distribution of that species 
southwards to the Mexican province of Vera Cruz.* 
2 Hemsley considered that A. Schiedeana, Planch. was certainly 
the same as the original A. palmatifida.t He enumerated 
A. Wrighttt in addition to A. palmatifida, but cited under the 
latter species Eaton. and Edwards’ specimens from Monterey, 
Nuevo Leon, and Parry’s No. 37, collected on the way from 
San Luis Potosi to San Antonio, Texas. These should be referred 
to A. Wrightii, as Sereno Watson shortly afterwards pointed 
out.t 
Three species of Amoreuaia were generally recognized in 
1895.8 Van Tieghem added a fourth in 1900, which differed 
from those previously described in its trilobed leaves and anthers 
opening by a single terminal pore instead of by two.|| The 
accepted synonymy and distribution of the four species was as 
follows :— 
1. A. palmatifida, Moc. et Sessé—A. Schiedeana, Planch. 
Euryanthe Schiedeana, Cham. et Schlecht. 
Distris. Arizona, Sonora, Vera Cruz, Colombia. 
2. A. Wrightii, A. Gray. 
Distris. S. W. Texas to Arizona, Nuevo Leon, Tamaulipas, 
Vera Cruz. 
3. A. malvaefolia, 4. Gray. 
Distris. Chihuahua. 
4. A. unipora, Van Tiegh. 
Distris. Bolivia. 
The anomalous geographical distribution ascribed to A. palm- 
atifida attracted the writer’s attention. It seemed improbable 
that a species found once only in Central Colombia, about 
4° 27’ N., should be identical with one whose nearest known 
locality was in Vera Cruz 15° further north. A critical examina- 
tion of the material of Amoreuxia in the Kew Herbarium and 
in the British Museum (Nat. Hist.) resulted in the recognition 
of five distinct species, apart from A. unipora, which is unre- 
presented, and A. Schiedeana, which is imperfectly known. | 
The seeds 
collected by Purdie in Colombia. 
= A. Gray in Das, Amer. Acad. v. p. 176 (1862). 
+ Biol. Centr.-Amer. Bot. i. PB Pa { os 
‘oc. er. Acad, xvii. p. 32 Bese | 
§ A. Gray Syn. Fl. N. reg ed. Robinson, i. part 1, p. 207 (1895). 
|| Journ. de Bot. 1900, xiv. p.. 48. : — 
