404 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



flowers in each involucre and the fruit is very prominently 5-lobed. The anthocarp 

 differs decidedly from that of other species of Allionia, the ribs being much thicker, 

 the intervening angles more acute, and the ribs of different shape. Because of its 

 peculiarities Dr. lleimerl placed the species in a separate section of Mirabilis which 

 he named Mirabilopsis. Another character, which seems not to have been noticed 

 before, is that the perianth is bilabiate. By some these differences, taken with the 

 characteristic coloring of the perianth, might be considered the basis for generic 

 segregation. The plant, however, in habit and general appearance so closely simulates 

 other species of the genus that it seems much better to leave it in Allionia. 



2. Allionia viscosa (Cav.) Kuntze, Rev. Gen. PI. 533. 1891. 

 Mirabilis viscosa Cav. Icon. PI. 1: 13. pi. 19. 1791. 

 Calyxhymcnia viscosa Orteg. Hort. Matr, Dec. 1 : 6. 1797. 

 Calymenia viscosa Pers. Syn. PI. 1: 36. 1805. 



Vitmania viscosa Turra; Steud. Nom. Bot. 140. 1821, as synonym. 

 Oxybaphus viscosus L'Her.; Choisy in DC. Prodr. 13 2 : 430. 1849. 

 Type locality, " In Urbe Huanuco Imperii Peruani." 

 Specimens examined: 



Chihuahua: Hacienda de San Miguel, September, 1885, Pahncr 233. 



Tamaulipas: Vicinity of Victoria, 1907, Palmer 179. 



Jalisco: Bolanos, September, 1897, Pose 2902. 



Guanajuato: Guanajuato, December 9, 1898, Dcam 173. 



Zacatecas: Zacatecas, October 3 and 4, 1910, Hitchcock. 



Oaxaca: Near Tamazulapam, alt. 2,000 to 2,150 meters, November 16, 1894, 



Nelson 1956; El Parian-Etla, November, 1898, Gonzalez & Conzatti 893. 

 Morelos: Cuernavaca, January JS, 1866, Bilimek 388. 



Puebla: Tehuacan, December, 1841, Liebmann; valley near Tehuacan, alt. 

 1,690 meters, August 23, 1901, Pringle 8600; near Tehuacan, August 1 and 2, 

 1901, Rose, & Hay 5929; Tehuacan, August 9, 1910, Hitchcock. 

 Hidalgo: Chalk bluffs near Tula, alt, 2,090 meters, September 20, 1902, Pringle 

 11141. 

 Hemsley cites the following additional specimens: Peal del Monte to Zacatecas, 

 Coulter 1427; Puebla, Andneux 126. 



3. Allionia rotata Stand] ey, Contr. Nat. Herb. 12: 347. 1909. 



Type locality, "Azufrora near Saltillo." Type collected September 22, 1848, 

 Gregg 511. 



4. Allionia violacea L. Syst. ed. 10. 890. 1759. 

 Oxybaphus violaccus Choisy, Prodr. 13 2 : 432. 1849. 

 Oxybaphus violaccvs parviflorus Choisy, Ioc. cit. 



Mirabilis violacea Heimerl, Jahresb. Oberrealsch. Ftinfhaus 23: repr. 23. 1897. 

 Type locality, Cumana, Venezuela. 

 Specimens examined: 



Yucatan: 1903, Caec. d- Ed. Scler 3996; Chichcn Itza, 1895, Millspaugh 121; 



1895, Gaumer 579. 

 Guatemala: Santa Rosa, Depart, Santa Rosa, alt. 770 meters, July, 1892, Ileyde 

 & Lux 3069; Casillas, Depart. Santa Rosa, alt. 1,230 meters, May, 1893, 

 Heyde & Lux 4563; Guatemala, Depart. Guatemala, alt. 1,540 meters, May, 

 1892, Shannon 4718. 

 Honduras: San Pedro Sula, Santa Barbara, 1888, Thieme 5624. 

 Costa Rica: Nicoya, 1900, Tonduz 13935; Nicoya, alt. 200 meters, May 22, 1903, 



Cook & Doyle 641; Bahia de Salmas, 1890, Pittier 2755. 

 Salvador: Vicinity of Izalco, Depart, Sonsonate, alt. 400 to 600 meters, February 

 14, 1907, Pittier 1926. 

 Hemsley gives the following additional locality in Mexico: Tehuantepec, 

 Andrieux 127. 



