OF ARTS AND SCIENCES. 121 



in closer spikes, from Monterey (885). 522 Coulter and specimens 

 collected bv Palmer in 18G9 on the Yaqui River, Arizona, are nearly 

 the same. Flowers yellow or yellowish. 



Heliotkopiuii glabriusculum, Torr. At Laredo on the Rio 

 Grande (884), and in the mountains west of Saltillo, Coahuila (883). 

 Flowers cream-white. 



Heliotropium parviflordm, Linn. At Laredo on the Rio 

 Grande (886) and in the region west of San Antonio, Texas, and at 

 Monclova, Coahuila (1021); 617 Parry & Palmer. 



Heliotropium Greggii, Torr. At San Lorenzo de Laguna, 

 Coahuila (888). 



Heliotropium convolvulaceum, Gray. In the region west of 

 San Antonio, Texas (889). 



Heliotropium (Euheliotropium) Palmeri, Gray in herb. 

 Perennial, herbaceous, branching from the base, the slender stems 

 ascending, strigose-pubescent throughout, a span high : leaves linear, 

 or linear-oblanceolate on the main stem, nearly sessile, acute or obtus- 

 ish, 6 to 10 lines long, the margin somewhat revolute : spikes mostly 

 lateral and simple, ebracteolate, becoming one or two inches long in 

 fruit, rather few-flowered : calyx-lobes linear, a line long or less ; co- 

 rolla white, 3 lines long, with a broad spreading limb: nutlets subglo- 

 bose, pubescent. — At Soledad, Coahuila (891, 892); very common. 



Heliotropium Curassavicum, Linn. About San Luis Potosi 

 (724 Schaffner). 



Omphalodes aliena, Gray; Hemsley, Bot. Biol. Centr.-Amer. 

 2. 377. At Monterey, Nuevo Leon (893). 



Omphalodes cardiophylla, Gray; Hemsley, 1. c. At Saltillo, 

 Coahuila (894). The relations of these species are hardly clear. 

 They seem to belong to Paracaryum rather than to Omphalodes^ if 

 these genera are to be retained as characterized by Bentham & 

 Hooker, the nutlets being attached nearly their whole length, from 

 just above the base to the apex, to the erect-pyramidal gynobase. 

 The thin-membranous character of the flattened nutlets, as well as 

 the habit, separates them from Echinospermum. 



Eritrichium fulvocanescens, Gray. In the Sierra Madre, 

 south of Saltillo (895). 



Eritrichium hispidum, Buckl. At Lerios in the hi^h mountains 

 east of Saltillo (896, 2046), and in the San Rafael Mountains, San 

 Luis Potosi (731 Schaffner); 623 Parry & Palmer. 



Antiphytum floribundum, Gray. In the San Miguelito Mount- 

 ains, San Luis Potosi (730 Schaffner). 



