CATALOGUE. 225 



Lamium amplexicaule, Linn. — Mosquito Pass, Colorado, Jnlj, 1873, 

 Wolf (777). Introduced. 



Trichostema Arizonicum, Gray (Proc. Am. Acad. 8, p. 371). — Puber- 

 ulent ; much branched, from a perennial, woody caudex ; branches mostly 

 simple, £ to 1J feet high; leaves oval and ovate, short-petioled, floral leaves 

 small ; bracts minute ; peduncles racemose, about 1 inch long, slender, 

 twice or thrice shorter than the 3- to 5-flowered cyme ; calyx campanulate, 

 slightly unequal, but equally 5-cleft ; lobes ovate-lanceolate, equalling the 

 tube of the corolla ; lobes of the corolla spatulate-oblong, declined ; fila- 

 ments not quite an inch long. — Sanoita Valley, Southern Arizona, at 6,500 

 feet elevation, August, 1874, Rothrock (621). 



Tetraclea* Coulteri, Gray (Sillim. Journ. 2d s. 16, p. 98). — Her- 

 baceous, from a suffruticose base, puberulent, branches erect ; leaves oppo- 

 site, petioled, ovate, subdentate, floral ones similar but smaller ; whorls 

 loose, axillary; cymes peduncled, usually 3 -flowered; flowers short-pedi- 

 celled, white, becoming yellowish after anthesis. — Cienega, Ariz., August, 

 1874, Rothrock (558). 



Tedcrium Canadense, Linn. — Arizona, 1873, Loew. 



PLANTAGINE^. 



Plantago Patagonica, Jacq., var. gnaphalioides, Gray. — Denver. 

 Plantago major, L. — Cienega, Southern Arizona (555). 



NYCTAGINE^]. 



Mirabilis multiflora, Gray. — Common throughout Arizona, New 

 Mexico, and open grounds of Southern and Central Colorado. 



Mirabilis longiflora, L. — Cottonwood, Arizona, at 4,500 feet (359). 



Oxybaphus nyctagineus, Sweet, var. latifolius, Gray. — Differing from 

 the type in having the involucre and younger branches hairy, the leaves 



*Tetkaclba, Gray (Benth. & Hook. Gen. 2, p. 1220). — Calyx broadly campanulate, 10-nerved, 

 deeply 5-cleft ; lobes nearly equal. Tube of the corolla exserted, slender, cylindrical ; limb spreading, 

 5-cleft, lobes oboval-oblong, nearly equal. Stamens 4, didynamons, with the anterior pair longer, 

 incurved-ascending, much exserted ; anthers 2-celled, cells distinct, parallel. Disk equal, short. Ovary 

 shortly 4-lobed at the apex; style 2-cleft at the apex; lobes subulate, nearly equal. Nutlets obovoid, 

 hard, reticnlate-rugose, attached by a broad, keeled areola, extended beyond the middle, leaving no 

 gyuophore when detached. Seeds affixed laterally. 

 15 BOT 



