CRUCIFERZ. 833 
2. Vesicaria argentea, Schauer, in Linnea, xx. p. 720. 
SourtH Mexico, Zimapan (Coulter, 691), Mexico (Aschenborn). Hb. Kew. 
Probably the same as V. ludoviciana, which has a wide range of distribution in 
North America. 
3. Vesicaria densiflora, A. Gray, Pl. Lindh. ii. p. 145. 
_ Texas and—Nortu-rast Mexico, banks of the Rio Grande. 
4. Vesicaria purpurea, A. Gray, Pl. Wright. ii. p. 14. 
TExAS and—Norrtn-west Mexico, Guadalupe Pass. and other localities, Sonora 
(Parry). 
5. Vesicaria recurvata, Engelm. in A. Gray, Pl. Lindh. ii. p. 145. 
Texas, Arizona.—NortH-west Mexico, Sonora (Parry). | 
6. Vesicaria stenophylla, A. Gray, Pl. Lindh. i. p. 9. 
Texas, New Mexico,—and Norru-gast Mexico, Monterey and Agua Nueva (Gregg 
& Edwards), region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 25} 
and 26). Hb. Kew. 
| 9. DRABA. 
Draba, Linn. Gen. Plant. n. 800; Benth. et Hook. Gen. Plant. i. p. 74. 
Upwards of 150 species are described; but a large proportion of them are not well 
defined. Bentham and Hooker think there may not be more than seventy or eighty 
good species. Numerous in the temperate and frigid regions of the northern hemisphere 
and in the Andes of Peru and Colombia, absent from New Zealand and South Africa, 
and rare in Chili, Fuegia, Falkland Islands, and Australia. 
1. Draba jorullensis, H. B. K. Nov. Gen. et Sp. v. p. 78. 
_ Sourn Mexico, Volcan de Jorullo (Humboldt & Bonpland), at San Pedro, Oaxaca 
(Karwinski). 
2. Draba micrantha, Nutt. in Torr. & Gray, Fl. N. Am. i. p. 109. 
Southern States of Norta AMERICA to—NortH-west Mexico, Guadalupe Pass and 
Santa Cruz, Sonora (Parry). Hb. Kew. 
3. Draba myosotidoides, Hemsley, Diag. Pl. Nov. pars alt. p. 18. 
Annua (Galeotti) erecta ramosa ultrapedalis hispidulo-pilosa, pilis albidis, foltis radicalibus vix 
crebris lineari-lanceolatis membranaceis integerrimis, caulinis sparsis supremis parvis, racemis 
laxis elongatis, floribus parvis flavis longiuscule pedicellatis omnibus partibus diu persistentibus, 
pedicellis demum patentissimis, sepalis oblongo-ellipticis extus sparse pilosis, petalis obovatis 
18ngiuscule unguiculatis emarginatis, siliqua immatura lineari-oblonga utrinque attenuata 
15-20-sperma. . 
Herba annua (Galeotti), erecta, ramosa, pedalis usque sesquipedalis, hispidulo-pilosa, pilis albidis lon- 
giusculis patentibus. Radix fusiformis. Caulis et ramuli graciliusculi, sparsifoliati. Folia radi- 
calia vix crebra, lineari-lanceolata, maxima vix bipollicaria, membranacea, integerrima ; caulina 
minora, superiora remota, linearia, semipollicaria. Racemi elongati, laxi. Flores flavi, parvi, 
BIOL. CENT.-AMER., Bot. Vol. 1, Sept. 1879. t 
