V. 



PLANT^ •WR1GHTIAN.'E 



13 



Gen. Ill l-i?. 218, t 96, ^ Pl Lindk 2. p. 187. Valley of the Rio Grande, sixty 

 or seventy miles below El Paso ; Sex^t. 



CARYOPHYLLACE^. 



25. LcEFLiNGiA SQUARROSA, Nutt. iu Ton. ^ Groij, Fl 1. p. 174 ; Ilook Ic. Pl 

 t. 285 ; Groy, Gen. III. 2. t. 106. Sandy road-sidcs, Austin, Texas; May. 



26. Paronyciiia Lindheimeri, Engelm. in Pl. Lindh. 2. p. 152. Mountains be- 

 tween the Limpia or Wild Rose Creek and tlie Rio Grandc ; Aug. — Thc specimens 

 w^ell accord with Lindheimer's and with Wrighfs Tcxan specimens. 



27. P. Jamesii, Torr. 8f Grai/, Fl. 1. p. 170; Graj/, Pl. Fendl. p. U. Hills of 

 the San Pedro Eiver ; July. — Resembles the larger form among Fendlefs spcci- 

 mens, No. 69 ; but with the calyx rather more hairy : in both, the sepals are tippcd 

 with a cusp or awn as long as that of P. dichotoma. 



28. P. Jamesii, var. canescenti-puberula, cymis confertis multifloris. — Crevices 

 of rocks on a creek beyond the Pccos, growing in strong tufts ; Aug. 



PORTULACACEJ^. 



29. Sesuvium Portulaccastrum, Linn. Sp. ed. 2. p. 684 ; DC. Prodr. 3. p. 453 : 

 var. floribus subsessilibus. (S. sessile", Pers. ; DC. Pl. Grass. t. 9.) Low bottoms 

 of the Eio Grande below El Paso ; Sept. — The specimens, as well as those gath- 

 ered by Gregg and Wislizenus in Northern Mcxico, all belong to the form with 



subsessile flowers.* 



30. "Portulaca retusa, Engelm. Pl. Lindh. 2. p. 154. Valley of the Rio 



Grande below El Paso, in sandy soil. The long style and the broadly winged se- 

 pals are decisive as to the identity of this species. The seeds arc of the same size 

 and roughness as those of Lindheimer's specimens, but opaque and black, not g 

 ish. The only specimen before me is a small erect plant, without any ilowers. 

 Mr. Wrighfs notes the flowers are said to be "yellowand minute."] — To the char- 

 acter of the Spathulat(B in Pl. Lindh. l c. add: Operculo capsulce acuto suh aplce 

 constricto semina unum plurave inclitdente. I had overlooked this remarkable fact ; 

 but it conJitantly occurs in all the species of this section, both European and Ameri- 



can." Engelmann. 



31. 32. " P. piLosA, Linn. W. Texas to New Mcxico. I have before me speci- 

 mens from six different localities, from the Brazos westward, collectedby Lindheimer 

 and Wright, differing from one anothcr in the size and appearance of the seeds, and 

 in the shape of the capsule ; but these differences vary so much, that even varieties 

 can hardly be characterized. In some the capsule is small with a long stipe, the 

 operculum conic, the seeds very minute, and more or Icss shining with metallic lus- 

 tre. In others the capsule is more than twice as large, the operculum semiglobose, 

 the stipe very short, and the much largcr seeds black and opaque." Engelmann. 



^. 



Sesuvium pentandrum, Ell SL h p. 556 (figurcd in Gen, Illustn L 100), has bcen republished un- 

 dcr the same name by Fenzl, in Ann. Wien. Mtis. 2. p. 347, from Drummond's New Orleans specimens. 



VOL. III. ART. 5. — 3, 



-JlH" 



