LILIACEA. 379 
5. Allium mutabile, Michx. Fl. Bor.-Am. i. p. 195; Don in Mem. Wern, Nat. 
Hist. Soc. vi. p. 74; Red. Lil. t. 240; S. Wats. in Proc. Am. Acad. xiv. p. 227; Torrey, 
Bot. U.S. & Mex. Bound. Surv. p. 217. 
Allium drummondii et Allium mobilense, Regel, Allior. Monogr. pp. 112 et 121. 
Norte Carolina and Fioripa to Arkansas and New Mexico.—Norta Mexico, 
Chihuahua (Thurber), Presidio del Norte and other places on the Rio Grande (Bigelow). 
6. Allium plummera, S. Wats. in Proc. Am. Acad. xviii. p. 195. 
Norte Mexico, Tanner’s Cafion, Huachuca Mountains, Southern Arizona (Lemmon). 
We are not sure whether this locality is south of the Gila, our northern boundary. 
7. Allium reticulatum, Nutt. in Fras. Cat. ex Torr. Bot. U.S. & Mex. Bound. 
Surv. p. 217; Hook. Fl. Bor.-Am. t. 195; S. Wats. in Proc. Am. Acad. xiv. p. 227. 
Allium ‘stellatum, var., Sims, Bot. Mag. t. 1840. 
SASKATCHEWAN to Arizona and New Mexico.—Norta Mexico, Chihuahua (Wright). 
8. Allium scaposum, Benth. Pl. Hartw. p. 26; Regel, Allior. Monogr. p. 94; 
S. Wats. in Proc. Am. Acad. xviii. p. 166. 
Nort Mexico, region of San Luis Potosi (Parry & Palmer, 885 ; Schaffner), Soledad, 
Coahuila (Palmer); Soura Mexico, Guanajuato (Dugés), Aguas Calientes (Hartwegq), 
Guadalupe, Zacoalco (Bourgeau, 741). Hb. Kew. 
Tribe XIII. SCILLEZ. 
Scillee, Benth. et Hook. Gen. Plant. iti. p. 758. 
An exclusively Old-World tribe comprising twenty-one genera and about 360 species, 
a large proportion of which are concentrated in South Africa. 
Tribe XIV. TULIPEZ. 
Tulipee, Benth. et Hook. Gen. Plant. ii. p. 759. 
This tribe is generally dispersed in the temperate and subtropical regions of the 
northern hemisphere. It consists of seven genera and nearly 200 species. The genus 
Gagea and the larger genus Tulipa are the only ones not represented in North America, 
where the widely dispersed and familiar genera Lilium and Fritillaria approach, though 
they are not known to enter our northern boundary. 
14. CALOCHORTUS. 
- Calachortus, Pursh, Fl. Am. Sept. i. p. 240; Benth. et Hook. Gen. Plant. iti. p. 820. 
Cyclobothra, Don in Sweet’s Brit. Fl. Gard. t. 278, et ser. 2, t. 20. 
An exclusively North-American genus, inhabiting the western side chiefly, and 
ranging from British Columbia southward to South Mexico. Baker defines twenty-one 
species, which number S. Watson in a later monograph raises to thirty-two, partly by 
additional species and partly by regarding some of Baker's varieties as distinct species. 
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