254 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



1. Dondia calif ornica (S. Wats.) Heller, Cat. N. Anier. PI. 3. 1898. 

 Suaeda calif ornica S. Wats. Proe. Amer. Acad. 9:89. 1874. 



Salt luarsLes, coast of Baja California. California ; type from San Franci.sco 

 Bay. 



Shrub, 20 to 80 cm. high ; leaves 1.5 to 3.5 cm. long. 



2. Dondia fruticosa (L.) Druce, List. Brit. PI. 60. 1908. 

 Chenopodiitm iruticosum L. Sp. PL 221. 1753. 

 Suaeda frvticosa Foi-sk. Fl. Aegypt. Arab. 70. 1775. 



Coahuila and probably elsewhere. North\vai-<l to Alberta ; Bahamas and 

 Cuba ; Europe, Asia, and Africa. 



Shrub, 20 to 80 cm. high ; leaves 1 to 1.5 cm. long. 



3. Dondia ramosissima Standi. N. Amer. Fl. 21: 91. 1916. 



Baja California. Southern California and Arizima ; type from Lees Ferry, 

 Arizona. 



Shrub, 1 meter high ; leaves 0.5 to 2 cm. long. 



4. Dondia brevifolia Standi. N. Amer. Fl. 21: 92. 1916. 

 Baja California. Southern California ; type from Newport. 



5. Dondia palmeri Standi. N. Amer. Fl. 21:91. 1916. 

 Coahuila and Zacatecas ; type from Parras, Coahuila. 

 Low shrub. " Saladillo " (ZaCatecas). 



6. Dondia tampicensis Standi. N. Amer. Fl. 21:91. 1916. 



Known only from the type locality, along the coast near La Barra, Tamauli- 

 pas, near Tampico. 



33. AMAEANTHACEAE. Amaranth Family. 



Reference: Standley, Amaranthaceae. N. Amer. Fl. 21: 95-169. 1917. 

 Shrubs or small trees; leaves opposite or alternate, estipulate, entire; flowers 

 small, perfect or unisexual, usually whitish, mostly spicate; fruit very small, 

 dry. 



Many herbaceous representatives of tlie family occur in Mexico. 

 Leaves opposite. Fruit 1-seeded. 



Stigma capitate or shallowly bilobate. Plants scandent 5. PFAFFIA. 



Stigma with 2 or 3 subulate or filiform lobes 6. IRESINE. 



Leaves alternate. 



Fruit with 2 or more seeds. Flowers perfect. 



Fruit 1-seeded 1. CELOSIA. 



Sepals glabrous ; anthers 4-celled. 



Seeds with an aril ; stems usually scandent or reclining_2. CHAMISSOA. 



Seeds without nn aril : stems erect 3. LAGREZIA. 



Sepals villous; anthers 2-celled 4. DICRAURUS. 



1. CELOSIA L. Sp. PI. 20.5. 17.53. 



Low shrubs or herbs; leaves alternate, entire or lobed. petiolate; flowers 

 perfect, spicate. 



The best-known representative of the genus is the cockscomb, CcJosia avfreiitra 

 L., various forms of which are cultivated for ornament. It is known in 

 Mexico as " cresta de gallo," " abanico," " Cinco de Mayo," and " niano de le6n." 

 The cultivated plants are the form with fasciate<l inflorescence, described by 

 Linnaeus as Celosia cristato. This is the only species besides those enumerated 

 below which occurs in Mexico. 



