OF ARTS AND SCIENCES. Ill 



Lobelia fenestralis, Cav. In the San Miguelito Mountains, 

 San Luis Potosi, with larger flowers than usual (764 Schaffner), and 

 at Guanajuato (Duges) ; 558 Parry & Palmer. 



Lobelia grujna, Cav. Near Morales, San Luis Potosi (763 

 Schaffner) ; 559 Parry & Palmer. 



Lobelia Cliffortiana, Linn., var. brachtpoda, Gray, At 

 Monterey (772) ; the same as 419 and 1429 Wright, referred to L. 

 Berlandieri. Also a low slender form with white flowers, from the 

 same region (771). This si:)ecies appears to be always glabrous. 



Lobelia Berlandieri, DC. At Monterey (770), at San Luis 

 Potosi (119 SchafFuer), and at Morales (737 Schaffner); 556 and 

 556^ Parry & Palmer. The same was collected also by Gregg at 

 Monterey, and by Berlandier (3177) at Matamoros, and it is probably 

 the same as Berlandier's 106 from Tampico, the original of the 

 species. Puberulent and more or less hirsute toward the base with 

 reflexed hairs, the stems low and lax, and the pedicels elongated. 



Heterotoma lobelioides, Zucc. Mountains near Santa Maria 

 del Rio, San Luis Potosi (736 Schaffner). 



Campanula rotundifolia, Linn. At Lerios, in the high mount- 

 ains east of Saltillo (776). 



Arbutus Xalapensis, HBK. (?) In the Sierra Madre, south of 

 Saltillo (777), and at Lerios (778) ; 314 of Schaffner's previous distri- 

 bution. The very young leaves are densely pubescent, becoming nearly 

 glabrous and beneath somewhat glaucous. The young ovary is usu- 

 ally pubescent. A. Texana, Buckley (referred to A. 3fenziesn), is 

 the same. A. prunifoUa, Klotsch, is doubtless the same species, and 

 probably also A. prunifoUa, Lindl. It agrees more nearly, perhaps, 

 with the description of A. mollis, HBK., than with that of A. Xala- 

 pensis, and is apparently identical with the plant formerly cultivated 

 as A. mollis and figured in Bot. Mag. t. 4595. 562 Parry & Palmer, 

 and 98 Schaffner from the San Miguelito Mountains, are very similar 

 to this, but the leaves are mostly quite glabrous, as also the ovaries. 

 A. Menziesii, Pursh, with larger wholly glabrous and very rarely 

 serrulate leaves, and with the ovary always glabrous, appears to be 

 confined to California and Oregon. 



Arbutus glandulosa, Mart. & Gal. In the San Rafael Mount- 

 ains (99 Schaffner) ; 563 Parry & Palmer. 



Arctostaphylos pungens, HBK. In the Sierra Madre, south of 

 Saltillo (779), at Lerios (780), and at Guanajuato (Duges), where it 

 is known as "Pinguica" and employed as a diuretic; bQb Parry &. 

 Palmer. 



