OF ARTS AND SCIENCES. 329 



3. E. GLANDULiFERA Torr. in "Wats. Bot. King, I.e. Tenella, 

 gracilis, pube minuta glandulosa et viscida ; foliis parvis oblongis 

 vel spathulatis parum incisis dentatisve, summis integerrimis ; floribus 

 in spicis racemisve elongandis numerosis ; pedicellis plerumque brevis- 

 simis ; corolla angusto-campanulata (lin. 2 longa) sepalis linearibus 

 longiore ; stylo filiformi; ovulis 6-12. — W. borders of Nevada, 

 Anderson, Watson. 



* * Glaberrima, eglandulosa : corolla profunda 5-fida, sepalis oblongo- 

 snathulatis crassiusculis baud longior, plicis nuUis : folia succulenta 

 plerumque integerrima: capsula 8-10-sperma, styli basi indurata 

 subulata. 



4. E. GLABERRIMA Tori'. in Wats. 1. c. — W. Nevada and N. 

 Arizona. 



§ 2. EMMENANTHE vera. Major, racemis paniculatis laxis : 

 corolla ampla, latissime campanulata, ochroleuca, plicis nullis : 

 sepala ovato-lanceolata : stylus deciduus : placentiE circiter 8-ovulat£e 

 dilatatce : semiua areolis grossis alveolato-reticulata. 



5. E. PENDDLiFLORA Benth. — California and S. Utah. 



7. CONANTHUS S. Watson (Eutoca? § Conanthus A. DC.) 



1. C. ARETioiDES Wats. 1. c. Eufoca aretioides Hook. & Arn. 1. c. ; 

 Hook. Ic. t. 355. — Interior of Oregon to Arizona and eastern bor- 

 ders of California. This little plant is intermediate between Phacelia 

 {^Eutoca) and Nama, but nearer to the latter, from which it is excluded 

 mainly by its united styles. The inequality in the insertion of the fila- 

 ments is not rare in Nama, and N. deniissa is readily mistaken for 

 Conanthus. To the latter belongs part of the specimens (those of 

 Anderson) from which I first described Nama demissa. Conanthus is 

 the only plant of the order in which I have found manifest indications 

 of dimorphism in the genitalia, being of two and perhaps three lengths ; 

 the style and stamens, however, not reciprocally long and short, but 

 correspondent, as I have found them in certain Polemoniacece and 

 JBorraginacece. 



8. TRICARDIA Torr. 



1. T. Watsoxi Torr. in Wats. Bot. King, p. 258, t. 24 — W. Ne- 

 vada, Watson. I have nothing to add to the characters of this genus, 

 which is strikingly marked by its three cordate enlarged sepals, and of 

 which the specimens extant are scanty. 



