STANDLEY ALLIONIACEAE OF MEXICO. 417 



Mirabilis suaveolens was described from specimens collected on hills near Guana- 

 juato. It was said to resemble M. longiflora, but to have the stem and flowers more 

 viscid and the leaf blades petioled. Undoubtedly it is a synonym of this species. 



Quite as showy as Mirabilis jalapa, with its sweet-scented white and purple 

 flowers. The plant is well known in Mexico, where it has received such names as 

 maravilla del jar din, pebcte, suspiros, alzoyatic, and atzoyatl, the last two being Aztec. 



7. Mirabilis wrightiana A. Gray; Britton & Kearney, Trans. N. Y. Acad. Sci. 14: 

 28. 1894. 

 Type locality uncertain. 



Specimens examined: 



Sonora: Guadalupe Canyon, August 27, 1893, Merton 2052. 

 Chihuahua: No locality given, September 10, 1891, Hartman 761; Santa Eulalia 

 Plains, September 11, 1885, Wilkinson; between Colonia Garcia and Pratt's 

 ranch below Pacheco, August 22-24, 1899, Nelson 6278. 

 Coahuila: Canyon above Palomas, Saltillo, 1848, Gregg 331. 

 This species should perhaps be reduced to subspecific rank. It differs from M. 

 longiflora principally in the amount of pubescence, and there are numerous inter- 

 grading forms. 



AnniTIONAL SPECIES REPORTEn FROM MEXICO. 



Mirabilis hybrida Lepel. Ann. Mus. Paris 8: 481. 1806. 



Mirabilis cordata Brouss. ; Room. & Schult. Syst. Veg. 4: 2. 1819. 



A form described from cultivated material, thought to be a hybrid of M. jalapa and 

 M. longiflora, since it combines the peculiarities of those two species. The only 

 material seen has been that from cultivated plants in European gardens. It has been 

 stated that the hybrid is found wild, but the writer has seen no such specimens. 

 Mirabilis tubrfiora Fries; Heimerl, Jahresb. Oberrealsch. Fimfhaus 23: repr. 20. 

 1897. 



This appears to be a nomen nudum. There is nothing to indicate to what plant it 

 was applied. 

 Mirabilis oaxacae Heimerl, Jahresb. Oberrealsch. Funfhaus 23: repr. 20. 1897. 



The name alone was published by Heimerl a in 1886. The final description gives 

 simply the following information: "A subspecies or variety with the flowers long- 

 tubular, the limb of the perianth narrow, the involucres short, the fruit more oblong 

 (than in M. jalapa) was collected by Franco about Oaxaca in southern Mexico." 



18. ACLEISANTHES A. Gray. 



Acleisanthes A. Gray, Amer. Journ. Sci. II. 15: 259. 1853. 



Pentacrophys A. Gray, loc. cit. 



Type species, Acleisanthes crassifolia A. Gray. 



Hemsley cites four species of the genus from Mexico, one of them A. berlandieri. 

 The specimens upon the authority of which this species was included are here referred 

 to A. greggii. 



KEY TO THE SPECIES. 



Ribs ending above in conspicuous knobs or glands. (Penta- 

 crophys A. Gray) 1. A. acutifolia. 



Ribs not ending above in knobs or glands. 



Opposite leaves strongly unequal 2. A . anisophylla. 



Opposite leaves not strongly unequal. 



Leaves long-attenuate (triangular-lanceolate; plants 



mostly glabrous) 3. A , longiflora. 



a Sitzungsb. Akad. Wiss. Math. Naturw. (Wien) 93: 234. 



