360 HYDROPHYLLACEA, 
1. Wigandia caracasana, H. B. K. Nov. Gen. et Sp. iii. p. 128; Bot. Mag. 
t. 45752; Bot. Reg. t. 1966? | 
South Mexico, Oaxaca ( Ghiesbreght).—Cotoxs1a VENEZUELA. Hb. Kew. 
2. Wigandia kunthii, Choisy in DC. Prodr. x. p. 184. (Tab. LVIIL) 
Wigandia urens, H. B. K. Nov. Gen. et Sp. iii. p. 127, non Choisy. 
South Mexico, Huahuapan (Andrieux, 216), Pedregal (Bilimek, 252), Oaxaca, 6000 
feet (Galeotti, 1436), valley of Mexico (Bourgeau, 128); GuareMmaza, Capetillo, Volcan 
de Fuego, 4600 feet (Salvin), without locality (Skinner). Hb. Kew. | 
Grisebach (Fl. Brit. W. Ind. p. 477) reduces W. caracasana, “ Hook.,” to this species, 
and retains the name W. wrens, H. B. K., for it. 
p. macrophylla, Choisy in DC. Prodr. x. p. 184; Cham. et Schl. in Linnza, vi. 
p. 382 (species). 
Mexico (Schiede & Deppe). 
3. Wigandia scorpioides, Choisy in DC. Prodr. x. p. 184; DC. Calques des 
Dess. Fl. Mex. 873. 
Sour Mexico, region of Orizaba (Bourgeau, 2478; Miller, 1364; Botteri, 883), 
Cordillera of Oaxaca, at 5000 feet (Galeotti, 1437); Nicaragua, Realejo (Sinclair). 
Hb. Kew. 
4. Wigandia urens, Choisy in DC. Prodr. x. p. 184? 
Hydrolea urens, Ruiz et Pay. Fl. Peru. ii. t. 243 ? 
Sours Mexico, Leon (Hartweg). Hb. Kew. 
4, NAMA. 
Nama, Linn. Gen. Plant. n. 817; Benth. et Hook. Gen. Plant. ii. p. 831. 
About twenty-two herbaceous and half-shrubby species, inhabiting Mexico and the 
neighbouring countries, two extending to South America. 
The following synopsis of the Mexican species was kindly furnished by Dr. A. Gray. 
All the species of the flora of North America, excepting the peculiar ones of § 2 and 
§ 3 of my Synop. Fl. N. Am. ii. p. 175 (i.e. W. lobdii, rothrockit, and parryz), occur in 
Mexico, or near its northern line; and the genus mainly belongs to the ‘Texano- 
Mexican region. Among the new species which have recently come to hand, and 
which are here indicated, are two with appendaged filaments, a character that at first 
sight appears to be quite anomalous. But in a considerable number of the species, 
including the original V. jamaicense, the adnate base of the filament has more or less free, 
thin margins, which are manifestly homologous with the so-called plice or appendages 
in the corolla of many Hydrophyllacee, especially in Phacelia and Emmenanthe ; these 
are prolonged into a free and conspicuous lobe on each side of the filament in 
N. schaffneri, but only into a short tooth in MW. stenophyllum. In NV. palmert the 
