OF ARTS AND SCIENCES. 165 



secuiid; pedicels solitary, 2 to 4 lines long, about equalling the lan- 

 ceolate acuminate bracts, at length spreading or recurved : perianth- 

 segments lanceolate, 4 lines long, the midnerve not colored : sterile 

 filaments scarcely shorter than the perianth, all adnate to its middle : 

 style a line long, at length declinate : capsule very shortly stipitate, 



2 to 3 lines long and broad. — In the mountains six miles east of 

 SaltiUo, Coahuila (1319). 



MiLLA BiFLORA, Cav. At Sau Luis Potosi (Schaffner) ; 884 

 Parry & Palmer. 



NoTiioscoRDUM STRIATUM, Kunth. At Guadalupe, Texas (2009), 

 at Lerios (1317) and Monclova, Coahuila, at Guajuco, Nuevo Leon 

 (1318), and at San Luis Potosi (537" Schaffner); 886 Parry & 

 Palmer. 



Allium scaposuai, Benth. In the San Miguelito Mountains, San 

 Luis Potosi (537^ SchafFuer), and at Guanajuato (Duges) ; 885 Parry 

 & Palmer, at least in part. It is doubtful if A. glandulosum, Link & 

 Otto, be not the same with deeper colored flowers, as represented by 

 885 Parry & Palmer, in part, and 1567 Coulter. Specimens col- 

 lected by Dr. Palmer at Soledad, Coahuila (2010), are perhaps a 

 stout form of A. scaposum, with more numerous and shorter pedicels 

 (6 lines long), and light pink flowers. A. longifolium, Spreng. 

 (^Schoenoprasum longifoUum, HBK.), is probably Nothoscordum stria- 

 tum. 



Calochortus flavus, Schult. f. In the San Miguelito Mount- 

 ains (542 Schaffner), and at Guanajuato (Duges); 891 Parry & 

 Palmer. 



Zygadenus volcanicus, Benth. In the San Miguelito Mountains 

 (544 Schaffner) ; 892 Parry «& Palmer. 



nearly as long, slightly curved. — Root fleshy-fibrous. Leaves radical, terete 

 or slightly concave on the inner side, fistulous. Stem branching, leafless, with 

 scarious bracts at the nodes. Inflorescence racemose, the pedicels solitary, 

 jointed in the middle. Flowers small, light salmon-color. 



HEMIPHYLACUS. Perianth persistent, the distinct equal spreading 1- 

 nerved segments at length lax and scarious. Stamens perigynous, included; 

 filaments slender, naked, unequal, adnate to the middle, those upon the outer seg- 

 ments longest and without anthers ; anthers versatile, rounded, introrse. Ovary 

 nearly sessile, 3-celled, 3-lobed : style slender, persistent ; stigmas minute : ovules 



3 to 6 in each cell, upon the middle of the axis. Capsule coriaceous, broadly tri- 

 quetrous-ovate, loculicidal. Seeds 1 or 2 in each cell, black. Embryo slightly 

 curved, in fleshy albumen. — A glabrous perennial, with long tuberous fascicled 

 roots. Leaves radical, very broadly linear. Stem naked, branched above, with 

 scarious bracts. Flowers small, in loose racemes, white or yellowish ; pedicels 

 jointed at the summit. 



