OF ARTS AND SCIENCES. 437 



GoMPHRENA DECiPiENS. Erect, branched, 2 feet high, sparingly- 

 pilose, more densely so at the nodes and on the young branches : 

 leaves oblong-lanceolate or oblanceolate, acute or subacuminate, atten- 

 uate to a winged petiole, sparsely villous beneath, H to 3 inches long: 

 heads small, white, usually sessile between a pair of sessile leaves : 

 bracts equal, without crest, hyaline, ovate, acute, very faintly nerved, 

 2 lines long : sepals as long, scarious, nerveless at the narrow acutish 

 top, the nerve below green and rigid : stamineal tube slightly cleft, the 

 falcate lobes equalling the nearly sessile anthers. — Apparently distinct 

 from G. pilosa, Mart. & Gal., as described in DC. Prodromus, which 

 also has the bracts crestless. Hacienda San Jose (27). 



GoMPHRENA DECUMBENS, Jacq., var. Stems decumbent or ascend- 

 ing: crest of the bracts only near the summit and with 2 or 3 teeth. 

 Like the specimens from about San Luis Potosi, collected by Schaffner 

 and by Parry & Palmer. Specimens from other Mexican States, Cen- 

 tral America, and Cuba, vary much in the size of the crest and slightly 

 in the characters of the stamineal tube, but appear to be essentially the 

 same species. Hacienda San Jose (58). 



Frcelichia (Hoplotheca) alata. Perennial (?) ; stems erect, 

 2 or 3 feet high, rough-pubescent: leaves oblanceolate, acute, villous- 

 tomentose beneath, smoother above, the lower 3 or 4 inches long : 

 spikes solitary, sessile, short (3 to 8 lines long) ; bracts nearly a half 

 shorter than the calyx : calyx in fruit with broad lateral entire or 

 slightly crenulate wings, not crested nor winged upon the back : sta- 

 mineal tube equalling the calyx. — Allied to the Brazilian F. tomentosa. 

 Hacienda San Jose (47). 



Iresine celosioides, Linn. — Frayles (291). 



Iresine Schaffneri. SufFrutescent, appressed villous-pubescent, 

 the hairs of the stem shorter and substrigose : leaves oblong-lanceolate, 

 acute, narrowed to a slender petiole, densely whitish-silky beneath 

 when young, becoming nearly glabrous above, very variable in size 

 {\ to 3 or 4 inches long) : panicles mostly long-pedunculate, the spikes 

 sessile and somewhat crowded upon the short branches ; rhachis of the 

 spikes densely villous : flowers a line long, the staminate subpubescent 

 and with very short bracts, the fertile with naked bracts nearly equal- 

 ling the densely villous calyx. — The same as 87G Schaffner and 791 

 Parry & Palmer, from near San Luis Potosi. Hacienda San Miguel 

 (12, 111). 



Chrnopodidm Berlandieri, Moq. — Same locality (9). 



Chenopodium A.MBR0SI0IDE3, Linn. — Norogachi (BB); used by 

 the Indians as a febrifuge and to flavor their food. " Iparote." 



