148 CALIFORNIA ACADEMY OF SCIENCES. 



Boca cle Soledad. — This plant differs much in appearance 

 from the species to which it is referred, but it seems best 

 not to separate it specifically on purely vegetative char- 

 acters. 



Dalea megacarpa Watson. — San Julian, Calamujuet. 



Dalea Benthami. Dalea ? Bot. Sulph., p. 12. To the 

 excellent description of the vegetative characters given by 

 Mr. Bentham, little need be added. The subulate almost 

 spinose stipules are at first gland - tipped, and the larger 

 terminal leaflet usually retuse : bracts slender, gland-tipped, 

 one-third the length of the calyx: calyx veiny, pubescent, 

 teeth obtuse, shorter than the tube, nearly equal in length : 

 petals pale yellow, retuse, blade shorter than the claw, stami- 

 neal tube even: anthers not glandular: style three times 

 the length of the ovary, glandless: pod 1-seeded, exceeding 

 the calyx, tipped by the nearly as long, persistent style: 

 embryo green or yellow, very variable. — Santa Margarita 

 Island. — This species differs from D. megacarpa in the en- 

 tire leaflets, veiny almost rugose on the upper surface, in 

 its divaricate branching habit, more spinose stipules, shape 

 of the petals and in the very much longer glandless style. — 

 The embryo furnishes a useful lesson as to the slight diag- 

 nostic value of a character ordinarily constant in species. 

 From the same plant, they are either deep or yellowish 

 green, oblong or nearly round. The cordate base is pro- 

 duced irregularly, the radicle appearing to be sometimes at 

 the base, sometimes at the side. The lobes often become 

 curved appendages on the sides, the cotyledons may be 

 folded one over the other in various ways and are sometimes 

 three in number. 



Dalea Schottii Torr. — Cajon de Santa Maria. 



Dalea spinosa Gray. — A. small tree or bush growing in 

 the sand of dry streams at Calamujuet. 



Eysenhardtia spinosa Engelm. Leaves larger than those 

 of Pringle's Chihuahua specimens. — Paraiso. 



