ROSE MEXICAN \NI> CENTRAL AMERICAN PLANTS. 



rype V. S. National Herbarium no. 161981, collected bj Dr. C. G. Pringle in I 

 Xochimilco, Valley of Mexico, L896 no. 6464 ; also in the same lake by I. N 

 and Walter Hough, May 26, 1899 no. 13 



Doctor Conard refers this species to Nympha l><<it<i gigaitfea, the "types 



which, he states, came from Saint Georges, Delaware. Even it Doctor Conard' s 

 reference were correct the name would he untenable, as there is already a Xymphaea 

 gigantta. 



Castalia odorata Ait Woodville & Wood, Etees' Cyclopedia 6: no. 1. L806. 



X'.ui/>li<t<<i odorata Ait. I hut. Kew. 2: l'l'7. 1789. 



T< > ' . odorata I have referred with some doubl material collected bj Dr. I'.. Palmer 

 licai- Durango in 1896 (no. 244 . This Btation, however, i- so far away from the 

 known range of C. odorata, that species having no1 heretofore been reported from 

 anywhere in Mexico, that its inclusion in the Mexican flora can at present be only 

 tentative. The possibility of the species having been introduced into ponds has 

 suggested, but Dr. Palmer assures me that the plant show- every indication of being 

 a native. 



RANUNCULACEAE. 

 TWO NEW SPECIES OF CLEMATIS. 



Clematis rhodocarpa Rose, Bp. nov. 



Apparently high-climbing vines, somewhat pubescent; upper leaves ternate; leaf- 

 let-ovate to broadly ovate, 5 to 8 fin. h.nL r . 3 to 6 cm. broad, more or less deeply 

 cordate, coarsely toothed, acuminate, slightly pubescent on both surfaces; inflores- 

 cence usually much shorter than the leave-: sepals oblong, obtuse; fruit rose-red, 

 only slightly hairy, when mature terminated by l<>m: curved hairy tails. 



Type r. s. National Herbarium no. 253028 | Pringle's no. 477m. 



Apparently common about Oaxaca, where it has been been collected by Pringle, 

 Nelson, and Charles L. Smith. 

 Clematis rufa Rose, sp. nov. 



A vine 3 to 9 meters long, the stem as well as the leave- densely covered with a 

 reddish yellow- pubescence; only the upper leave- seen, these ternate: leaflets lance- 

 olate to ovate. 4 to 7 cm. Ion--, acute to shortly acuminate, •"- to 5-nerved, entire; 

 inflorescence compact aboul the length of the subtending leaf: flowers numerous; 

 pedicels into L5 mm. Ion-: sepals oblong, obtuse; fruit not seen. 



Type U. s. National Herbarium no. l':;4."> ( .M . collected by E. W. Nelson along road 

 between Tenejapa ami Yatalon, Chiapas, altitude 400 to 1,500 meters, October 1."., 

 io. 3243 . 



R0SACEAE. 



A NEW POTENTILLA. 



Potentilla lozani Rose & Painter. Plate XXVI. 



Perennial from a -tout rootstock; stems several, erecl or ascending, up to 40 cm. 

 long, pubescent with --ft scattered hairs throughout, most plentifully so at base; 

 Leaves 5-foliolate, strictly palmate, on long silky-pubescent petioles; leaflets of basal 

 leaves with scattered short hair- above and more copious hair- beneath, rounded at 

 apex, crenately toothed, 'J" to 40 cm. loiiL r . obovate to oblong, cuneate; stipules ovate, 

 entire; flowering stems bearing few -mall leaves; calyx Lobes ovate, acute, hairy: 

 petals dark purple, emarginate, almost rhombic in outline, slightly exceeding the 

 sepals. 



Type I . s. National Herbarium no. 161978, collected by < '. <■. PringU and F. 

 Lozano in meadows at Cuyamoloya, Hidalgo, August 2, L904 no. 1345 . and bj 

 Rose and Painter between Somoriel ami I. a- Lajas, Hidalgo, August 5, L905 



Explanation "i Plate XXVI.— Plant, natural sd 



