118 



slender, 10 mm. long; calyx greenish, 4 mm. broad, 3 mm. high, pubescent; sepals 

 filiform, one-fourth the length of the tube; corolla white, 10 mm. broad; lobes short 

 and obtuse; stamens conduplicate ; female flowers solitary; peduncles 6 to 18 mm. 

 long, 3.7 to 5 cm. long, 18 mm. broad, thickly covered with slender prickles; prickles 

 more or less pubescent; beak slender, tardily breaking away, seeds 10, black. 



Collected by Mr. C. G. Pringle in a barranca near Cuernavaca, Morelos, Mexico, 

 5,000 feet altitude, November 8, 1895 (No. 6183). 



Explanation op Plate.— Fig. 1, flowering brunch: fig. 2, male flower; fig. 3, a longitudinal section 

 of the same; flg. 4, a fruiting branch; fig. 5, fruit; tig. 6, seed; scale of all 5. 



Echinopepon pubescens (Benth.) Rose. Elalerium ptibescena Benth. l'l. Hartw. 6. 

 1830. EcMno&jatia ptibescena Cogn. Mom. Conr. Acad. Belg. 8vo, 28:88. 1878. 



Collected by Mr. C. G. Pringle on volcanic hills, Monte Leon, State of Michoaoan, 

 November 11, 1802 (No. 4316). 

 Echinopepon parvifolius Pose, sp. no v. 



Stems slender; leaves 5-lobed, more or less scabrous, male flowers in slender ra- 

 cemes, 6 mm. wide, the lobes of the corolla ovate, acute; fruit oblong, small, prickly 

 even to the apex. 



Collected by C. Conzatli, Iluitzo, Oaxaca, October 1, 1895 (No. 139). 



Here perhaps belongs Bourgeau's No. 789, which, however, was referred by Pro- 

 fessor Coguiaux to E. wrigktii. 



Echinopepon torquatus (DC.) Rose. Eta(erinmtorquatumi)C. Prodr. 3:310. 1828. 

 Echinocystis lorquaia Cogn. Mem. Cour. Acad. Belg. 8vo, 28: 90. 1878. Eelti- 

 nopepon quinquelobatits Naud. Ann. Sci. Nat. ser. 5, 6:18. 1806. 



Collected by Mr. T. S. Brandegee iu Lower California at Sierra San Lazaro, Sep- 

 tember 17, 1893, and l.a Mesa, October 21, 1893. 



I have seen no Mexican malerial lor this species and these specimens may not 

 belong here ; but they do not belong with any other described Echinopepon. Cogn- 

 iaux has also referred here a plant from the Rio Magdalena (Lower California), 

 which is probably the same as ours. The leaves, however, are larger and the pedun- 

 cles much longer than described; the leaves are sometimes over 12 cm. long on 

 petioles 7.5 cm. long. 



Echinopepon wrightii (Gray) Wats, Bull. Torr. Club, 13:158. 1887. Elaterium 

 wrigktii Gray, l'l. Wright. 2:01. 1853. Echinocystis wrightii Cogn. Mem. 

 Cour. Acad. Belg. 8vo, 28:88. 1878. 



The typo {No. 222) is in the National Herbarium and is C. Wright's No. 1090 from 

 mountains at Guadalupe Pass. 



SPECIMENS EXAMINED IN (iltAY HEKltAKIUM. 

 New Mexico: 



Mountains at Guadalupe Pass, (J. Wright, 1851 (No. 1090). 

 Arizona : 



Cienega, J. T. Ilothroek, August, 1894 (No. 581). 



Sauta Catalina Mountains, altitude 2,624 meters, ./. G. Lemmon, April, 1880 (No. 

 45). 

 Mexico: 



Magdalena, Sonora, October, 1851, Geo. Thttrber (No. 951). 



Los Esqueros, Sonora, altitude 1,575 meters, October 13, 1890, G. V. H iriman 



(No. 168). 

 Acapulco, October, 1891 to March, 1895, Dr. Edward Palmer (No. 13). 

 This species has been confused in our herbaria with a very different species from 

 New Mexico which was included by Dr. Gray under Elaterium coulieri, but which 

 I have separated as above. 



The corolla is punctate-glandular within, not "sprinkled with adherent pollen 

 grains," as originally described. 



