CATALOGUE. 221 



flowers in a dense head on a peduncle much longer than the leaves ; calyx 

 flattened, "2-cleft, 2-keeled; fruit corky and not readily separating into 

 the 2 nutlets." — New Mexico, Loew. 



Verbena hastata, L. — Utah. 



Verbena bracteosa, Michaux. — Utah. 



Verbena Aubletia, L. — Arizona; New Mexico, at Santa F6 (12); 

 also in Rocky Canon, Arizona. 



LABIATE. 

 By Prof. T. C. Porter. 



Mentha viridis, Linn. — Camp Bowie, Arizona, at 5,300 feet elevation, 

 August, 1874, Rothrock (491). Introduced? 



Mentha Canadensis, Linn. — Utah, 1871, 1872, Watson's Report; Zufii, 

 N. Mex, at 6,500 feet elevation, July, 1874, Rothrock (168); Sanoita 

 Valley, Arizona, at 4,350 feet elevation, September, 1 874, Rothrock (687). — 

 Var. glabrata, Benth., Upper Arkansas, Colorado, 1873, Wolf (778). 



Lycopus sinuatus, Ell. — Utah, 1871, 1872, Watson's Report. An 

 imperfect specimen of a Lycopas, collected in San Luis Valley, Colorado, 

 September, 1873, by Professor Wolf (782), appears to be L. lucidus, Turcz., 

 var. Americanus, Gray (Proc. Am. Acad. 8, p. 286) 



Monardella odoratissima, Benth. (Watson, Bot. King, p. 235). — 

 Nevada and Utah, 1871, 1872, Watson's Report, 



Hedeoma hyssopifolia, Gray (Proc. Am. Acad. 11, p. 96). — Nearly 

 glabrous ; stems from a perennial branching caudex, slender, scarcely a foot 

 high ; leaves crowded, nerved, the main ones linear-lanceolate, £ to f of 

 an inch long and a line wide, the parallel veins running toward the apex, 

 the upper gradually reduced until shorter than the calyx, the lowest much 

 shorter and broader, with strong and more diverging nerves beneath ; 

 whorls loosely 3- to 5-flowered ; calyx narrow-tubular, slightly hairy, the 

 setaceous teeth incurved, the lower ones exceeding the upper ; corolla 7 to 

 8 lines long and twice the length of the calyx ; upper lip 2-lobed — Mount 

 Graham, Arizona, at 9,000 feet elevation, August, 1874, Rothrock (418); 

 Arizona, 1873, Loew (780).— Plate XVII. Natural size. Fig. 1. Flower, 

 enlarged 5 diameters. Fig. 2. Longitudinal section through flower, 5 



