OF ARTS AND SCIENCES. 359 



Mentzelia aspera, Linn. At Soledad (351), and in the moun- 

 tains north of Monclova (831). Distinguished from the next by 

 the annual root, smaller flowers, and longer and narrower capsule. 



Mentzelia hispida, Willd, {M. strigosa, II BK.) At Mon- 

 clova (352), Soledad (353), and in the Caracol Mountains (357) ; 

 also in the mountains about San Luis Potosi (110 Schaffner), and at 

 Guanajuato (Dugcs) ; 257 Parry & Palmer. The root is tuberous. 



Mentzelia multiflora, Nutt. At Saltillo (350, 2105), and at 

 San Lorenzo de Laguna (358, 359) ; several forms, varying in foliage, 

 size and color of the flowers, and length of the capsule. M. Wrightii 

 appears to differ only in the more shallow lobing of the leaves. 



TuRNERA aphrodisiaca, Ward. In the San Miguelito Mountains 

 (166 Schaffner) ; 93 Parry & Palmer. Known as " Yerba de 

 Vemulo." Frequently with 4 styles and a 4-valved 8-seeded capsule. 



Passiflora fcetida, Linn. At Laredo, Texas (2110). 



Passiflora tenuiloba, Engelm. At Sutherland Springs, Texas. 



Passiflora bryonioides, HBK. Near San Luis Potosi (109 

 Schaffner) ; 259 Parry & Palmer. 



CucuMis Anguria, Linn. At Uvalde, Texas (363). 



CucuRBiTA f(etidissima, HBK. (C. pereiinis, Gray.) In the 

 mountains near San Luis Potosi (765 Schaffner j ; known as " Cala- 

 bazilla loco." 



Apodanthera undulata, Gray. About San Luis Potosi (766 

 Schaffner) ; called '• Melon loco," and the root is said to be esculent. 



Maximowiczia tripartita, Cogn. At Uvalde, Texas (365), and 

 at Laredo, on the Rio Grande (364). This species differs from M. 

 Lindheimeri, Cogn. [Sici/dium Lindheimeri, Gray; 200 Parry & 

 Palmer), in its more narrowly lobed leaves, in the shorter campanu- 

 late tube of the calyx, in the rather smaller and more obtuse fruit, and 

 in the narrower seeds. The var. tenuisecta of M. Lindheimeri should 

 rather be referred to this species. 



Cyclanthera dissecta, Arn. ( C. Kaudimana, Cogn.) At 

 Uvalde, Texas (367), and at Guanajuato (Duges). The characters 

 upon which Cogniaux separates his C. Naudiniana appear to be all 

 unreliable. 



SiCYOS Deppei, Don. About San Luis Potosi (767 Schaffner), 

 and at Guanajuato (Duges) , known as " Chayotillos." Closely re- 

 sembling ^S". angidutus, Linn., and distinguished mainly by the smaller 

 (3 or 4 lines long) and less villous-tomentose fruit. 397 Lindheimer, 

 as well as 971 and 2401 Berlandier, from Texas, must be the same, 

 though referred to S. angulatus by Cogniaux. 



