OF ARTS AND SCIENCES. 317 



Benth., which is a more silky -pubescent form, and the same as 2 Parry 

 & Palmer. The species varies considerably in the size and form of 

 the leaves. 



Clematis PixcnicRi, Torr. & Gray. At Laredo, Texas (7), and 

 from several localities in Coahuila (4, 5, 6, 8), in as many different 

 forms, the last number corresponding to 1 Parry & Palmer, referred 

 to C. jiHfera, Benth., which is to be considered a synonym. This 

 polymorphous species, ranging from Western Illinois to Central Mex- 

 ico (Guanajuato, from Duges), is extremely variable in its foliage. 

 The leaflets, usually four pairs, may be either ternate or 3-lobed, or 

 all simple and entire, broadly ovate or cordate to lanceolate, and 

 usually acute, but sometimes very obtuse or long-acuminate. The 

 flowers vary from 9 to 18 lines in length. 



Thalictrum strigillosum, Hemsl. At Lerios, Coahuila (9). 

 Apparently one of the more common Mexican species, and probably 

 to be identified with some older one. Ghiesbreght's specimen from 

 Chiapas, referred by Hemsley to T. longistyluni, also belongs here. 

 Dr. Schaffner collects in the San Miguelito Mountains two very dis- 

 tinct species which are not readily identified. Both are glabrous, one 

 having ascending peduncles bearing close heads of sessile triangular 

 carpels, which are li lines long, with thickened and rib-like angles, the 

 other polygamous, with long recurved peduncles and open heads of 

 2 to 9 pedicellate compressed carpels beaked with a long style. 



Anemone Mexicana, HBK. Santa Rosa Mountains, Guanajuato 

 (Duges) . 



Ranunculus geoides, HBK. A low species, silky-pubescent, 

 with the radical leaves 3-lobed. A single specimen was collected at 

 Guajuco, Nuevo Leon. 



Ranunculus Hookeri, Schlecht. In the San Miguelito Moun- 

 tains (183 SchafFner) ; 6 and 1030 Parry & Palmer. This species, if 

 rightly understood, is a common one in Mexico. The mature carpels 

 have usually a few more or less prominent scattered tubercles upon 

 the sides. 



Ranunculus stolonifer, Hemsl. Near Morales, San Luis Potosi 

 (185 Schaffner) ; 4 Parry & Palmer. 



Ranunculus delphinifolius, HBK. In the San Miguelito 

 Mountains (184 SchafFner), and at Guanajuato (Duges). 



Aquilegia longisstma, Gray, in herb. Somewhat pubescent 

 with silky hairs: stem three feet high: leaves deeply lobed with 

 narrow segments, glaucous beneath, green above : flowers " lake, 

 white, and straw-color," the lanceolate sepals broadly spreading, 12 to 



