CRUCIFERA. 39 
4. Lepidium latifolium, Linn. Sp. Plant. p. 899. 
TEMPERATE EUROPE and West Asia, introduced into—SovutTH Mexico, near Toluca 
(Andrieur), valley of Mexico (Bourgeau, 12), Chapoltepec (Graham &c.). Hb. Kew. 
5. Lepidium menziesii, DC. Prod. i. p. 205. 
WESTERN coast of NortH America to—NortH Mexico, region of San Luis Potosi, 
6000 to 8000 feet (Parry and Palmer, 21); Sours Mexico, San Angel (Bourgeau, 13). 
Hb. Kew. 
6. Lepidium montanum, Nutt. in Torr. & Gray, Fl. N. Am. i. p. 116. 
New Mexico, Catirornia, and—Norru Mexico, Chiricahui Mountains, Sonora( Wright). 
7. Lepidium virginicum, Linn. Sp. Plant. p. 900. 
Senebiera mexicana, Hook. et Arn. 
Widely dispersed in temperate NortH America and extending to—Mextco, Zacatecas 
(Coulter, 686), roadsides near the city of Mexico (Bourgeau, 14), Ciudad Real (Linden) ; 
GuaTEeMALa, on walls (Bernoulli). Tb. Kew. 
15. CAPSELLA. 
Capsella, Moench. ex DC. Syst. Veg. ii. p. 383 ; Benth. et Hook. Gen. Plant. i. p. 86. 
Hymenolobus, Nutt. 
About eight species, widely dispersed in both hemispheres. C. bursa-pastoris is 
almost ubiquitous. 
1. Capsella (§ Hymenolobus) mexicana, Hemsley, Diag. Pl. Nov. pars alt. 
p. 19. 
Erecta nana ramosa sparse pilosa, foliis caulinis alte pectinato-pinnatifidis, lobis angustis apice 
aristatis, floribus minutis dense racemosis breviter pedicellatis, siliqua oblongo-elliptica hispido- 
pilosa polysperma. 
Herba annua, erecta, dense ramosa, sparse pilosa in spec. nostro infra 6-pollicaris, ramis gracilibus. 
Folia caulina alte pectinato-pinnatifida vel interdum subbipinnatifida, 4-8 lin. longa, lobis 
angustis, apice aristatis. Flores minuti, dense racemosi; pedicellis vix 1 lin. longis; sepala 
oblonga, basi equalia; petala linearia vel interdum nulla ; filamenta filiformia; stylus brevis, 
stigmate capitato. Stligua oblongo-elliptica, 2-3 lin. longa, hispidulo-pilosa, lateraliter com- 
pressa, valvis naviculiformibus ; semina minuta, numerosa, in quoque loculo biseriata, cotyledo- 
nibus incumbentibus, radicule conformibus. 
Norra Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 
19). Hb. Kew. 
16. SPHEROCARDAMUM. 
Spherocardamum, Schauer in Linnea, xx. p. 720; Benth. et Hook. Gen. Plant. i. p. 83. 
The following is the only species described :-— 
1. Spherocardamum neslizforme, Schauer in Linnea, xx. p. 721. 
Mexico (Aschenborn, 209). 
