117 



Echiiiopepon jaliscanus Eose, sp. nov. 



Stems climbing, grooved, pubescent; leaves rather thickish, pubescent, 3 to 

 5 -lobed, the ceutral lobe acuminate, with a broad open sinus at base; tendrils 

 3 parted; mule flowers in racemes 15 to 25 ein. long, corolla rather large; female 

 flowers nearly sessile, single, axillary, fruit nearly orbicular. 2 mm. long, tapering 

 into a slender beak ; prickles stout, slightly pubescent. 



Collected by Mr. C. G. Pringle, at Tequila, State of Jalisco, September 30, 1894 

 (No. 4563), and distributed as Eelrinocystis coiilleri. 



Echiiiopepon lanatua (Cogn.) Rose. EchinoetjaHs Janata Cogn. Mem. Cour. lead 

 Belg. 8vo, 28i 92. 1878. 



Collected by Dr. Edward Palmer at Lodiego, October 9 to 15, 1891 (No. 1584). I 

 am indebted to Prof. A. Cogniaux for the identification of this plant, but be refers 

 it to Kchinocystis. 



lhave recently seen a specimen collected by Mr. T. S. Brandegee in the Arroyo 

 Hondo, Lower California, October 27, 1893. It has mature fruit which is 3 cm. 

 thick. This is the largest-fruited species which I have seen. 



Echiiiopepon minimus (Kellogg) Wats. Proc. Am. Acad. 24:52. 1889. Marult 

 minima Kellogg, Proc. Cal. Acad. 2: 18. 18G3. Elaterium minimum Wats. 

 Proc. Am. Acad. 12:252. 1877. 



Collected by Dr. T. 11. Streets on Cedros Island in 1876, and by Dr. Edward Palmer 

 in March, 1889 (No. 719); also by T. S. Brandegee on Santa Margarita Island, Power 

 California, 1889; also by Dr. Palruer, Ea Pax, Power California, January 20 to Feb- 

 ruary 5, 1890 (No. 65). 



Echiiiopepon longispina (Cogn.) Eose. Echinoeystis lonyuspina Cogn. Mem. Cour. 

 Acad. Belg. 8 vo, 28:92. 1878. 



I have seen duplicates of the type in the (iray Herbarium. It was collected at 

 Jorulla, Mexico, by Schicde, 1829 (No. 1680). It is characterized by the very long 

 spines of the fruit, as the name would indicate, and by the peculiar inflorescence. 

 Echiiiopepon milleflorus Naud. Ann. Sci. Nat. ser. 5, 6: 18. 1866. Echiwcystis mil- 

 lejiora Cogn. Mem. Cour. Acad. Belg. 8vo, 28:88. 1878. 



Collected by Mr. C. G. Pringle in the valley of Mexico, 1896 (Nos. 6167 and 6516). 



These two specimens show considerable difference in the foliage; the latter shows 

 more variation from the type. The following characters may be noted: the leaves 

 are reniform, not at all lobed, 6.2 cm. broad with a deep sinus, and on petioles 12.5 

 cm. or less long; the male racemes are sometimes 12.5 cm. or more long. 



The above species is new to the National Herbarium, and until now has been 

 known only from the original specimens of Bourgeau. 

 Echinopepcn nelsoni Rose, sp. nov. 



A low delicate vino, 6 to 9 dm. long; leaves small, 3-lobed, lateral lobes obtus--, 

 central one acute and apicnlate; male flowers in short racemes on peduncles longer 

 than the leaves; corolla small, greenish white; female flowers on slender peduncles 

 18 to 2.") mm. lony ; fruit narrow, covered with slender prickles and with the slender 

 beak more or less prickly. 



Collected by E. \V. Nelson in the valley about Cuicatlan, State of Oaxaca, Novem- 

 ber 3, 1894 (No. 1878), and also near the same locality by V. Gonzales, December H 

 1895. 



Echiiiopepon pringlei Eose, sp. nov. Plate IV 



High-climbing vine; stem sulcate, pubescent; blade of leaf broadly ovate in out- 

 line, very variable in size, 5 to 10 cm. long, 3.7 to 12.5 cm. broad, more or less 3-lobed, 

 the middle lobe triangular, acuminate, the lateral ones broader, somewhat rounded, 

 often again lobed, apiculate, remotely serrate, more or less hispid on both sides; 

 sinus broad, somewhat rectangular; petiole 12 to 50 mm. long, covered with stiff, 

 straight hairs; tendrils 2 or 3-parted ; male Bowers in simple elongated racemes; 

 racemes much longer than the leaves, 10 to 17.5 cm. long, many-flowered; pedicels 

 435— No. O 2 



