320 PROCEEDINGS OF THE AMERICAN ACADEMY 



broader conspicuously toothed leaves. 25 Parry & Palmer, referred 

 to this species by Hemsley, is rather V. recurvata, Engelm. 



Vesicaria Fendleri, Gray. ( F. stenophylla, Gray.) In the 

 Sierra Madre, Coahuila (31). 



Vesicaria Schaffneri. Biennial, with several or numerous 

 ascending or decumbent stems, 6 to 15 inches high, simple or branched, 

 canescent throughout with a close scurfy pubescence : leaves linear- 

 to oblong-oblanceolate, obtuse or acute, entire or with one or two 

 teeth on each side, very variable in size (| to 3 inches long): petals 

 pale yellow or at length purplish, 3 lines long, twice longer than the 

 linear sepals : pod glabrous, globose (narrower at base when young), 

 about 2 lines long, very shortly stipitate, erect on the slender and at 

 length horizontal pedicel, which is about 4 lines long ; style about a 

 line long, — On mountains and in shaded places near San Luis Potosi 

 (150 Schaffner, in large part; 26 and 25J- mainly, Parry & Palmer; 

 mixed with V. argyrea). With the habit nearly of V. Gordoni, which 

 however, like V. argyrea and most of the allied species, has an evidently 

 stellate pubescence. 



CocHLEARiA (?) Mexicana. Annual, erect and slender (6 inches 

 high or less), the stem branching above and puberulent : leaves shortly 

 petiolate, ovate, truncate or usually cuneate at base, sparingly toothed, 

 the cauline 6 to 1 2 lines long, including the petiole : flowers very 

 small, in a flexuose raceme, the yellowish-white spatulate petals 

 (a line long) twice longer than the green sepals : style very short, 

 and stigma capitate : pods glabrous, globose, nearly sessile upon 

 spreading pedicels (2 lines long), 1 to \h lines in diameter; valves 

 nerveless : seeds 4 in each cell, subglobose. — At Monterey, Nuevo 

 Leon (40). Referred with some hesitation to this genus (§ Kernera), 

 with which it accords as well as with any other. The filaments are 

 straight and naked, with conspicuous glands at base ; cotyledons 

 accumbeut. 



Sisymbrium canescens, Nutt. Near San Luis Potosi (153 

 Schaffner). 683 Coulter, referred to S. streptocarpum, is the same. 



Sisymbrium Coulteei, Hemsl. Near San Luis Potosi (154 

 Schaffner, in part, with the following) ; 14 Parry &, Palmer. 



Sisymbrium Palmeri, Ilemsl. The typical form, with dense 

 hoary pubescence and undulate-toothed leaves, the lower lyrate. 

 Also var. elatius, Hemsl., taller (1 or 2 feet high), less canescently 

 pubescent and somewhat villous, the leaves thinner and greener, not 

 undulate, the lower large but scarcely lyrate, all strongly auricled ; 

 pods somewhat longer (9 to 12 lines) and pedicels rather shorter (2 to 



