T. 



PLANT^ WRIGHTIAN^. 



77 



^' 



I» 



> 



i 



SAXIFRAGACE^ 



P 



229\ Lepuropetalon spathulatum, Ell. Sk. 1. p. 370; Torr. §• Grai/, FI. 1. 

 590. In wet places, Western Texas; Feb., March. 



X Philadelphus serpyllifolius (sp. nov.) : ramosissimus, ramis confcitis rigidis; 

 foliis in ramulos breves confertis vel fasciculatis parvis ovalibus vel ovato-oblongis 



floribus subsessilibus 



globosa. — BetAY 



ubpetiolatis trinervatis supra puberulis subtus 

 ochroleucis; stylo brevissimo ; stigmate 

 WesternTexas and El Paso, New Mexico; coll. of 1851. — A most remarkable 

 species, apparently forming a low, rigid, subspinescent busb ; the leaves not half as 

 large as those of P. microphyllus itself, three to five lines long and from one to two 

 and a half wide, much crowded, obtuse, entire, green and pubescent or puberulent 

 above, the under surface white with a dense covering of appressed villous hairs. 

 Flowers much smaller than in any other species, very numerous, mostly solitary and 

 subsessile at the apex of the spurs or short leafy branchlets. Calyx silky-pubescent ; 

 the lobes ovate, half as long as the corolla. Pctals only three lines long, oval, inscrt- 

 ed by a broad base, apparently cream-color. Capsule a line and a half in diameter, 

 4-celled. — The hairs which clothe the lower surface of the leaves, undcr the micro- 

 scope, are studded all over with tubercles, as also in P. hirsutus, and, more or lcss 

 evidently, in other species. 



FENDLERA, Engelm. Sf Gray, Nov. Gen. 



Calyx tubo turbinato 8-costato, cum ovarii basi connato ; limbo 4-partito, lobis 

 triangulatis sestivatione valvatis. Petala 4, ovato-deltoidea, unguiculata, erosa, de- 

 cidua. Stamina 8 cum petalis inserta : filamenta linearia, plana, apice bifurcata, lo- 

 bis lineari-attenuatis ultra antheram longe productis : antherae introrsae, mucronatae, 

 biloculares, longitudinaliter dehiscentes. Ovarium semisuperum, 4-locuIare (locuhs 

 sepalis alternantibus) : styli pilosuli conniventes, pl. m. coaliti : stigmata terminalia 

 simplicia. Ovula in loculis plurima, e placentis centralibus imbricato-pendula, ana- 

 tropa. Capsula crustacea, ovoideo-conica, stylis persistentibus acuminata, basi ca- 

 lyce accreta, 4-locuIaris, ex apice septicida. Semina in loculis pauca pendula, imbri- 

 cata, oblonga, testa membranacea laxa reticulata deorsum alata. Embryo in albu- 

 mine parco rectus, ejusdem fere longitudine ; cotyledonibus oblongis radicula supe- 

 ra duplo longioribus. — Frutex 2 - 4-pedaIis ; foliis oppositis lanceolatis subsessili- 

 bus trinervatis integerrimis ; floribus ramulos breves terminantibus solitariis vel 

 ternis breviter pedunculatis, petalis albis. 



Fendlera rupicola. (Tab. V.) — Var. a. Lindheimeri : glabriuscula ; foliis 

 planis (pollicem longis 3 lin. latis) subtus parce strigosis ; ramis sterilibus gracilli- 

 mis. On perpendicular rocks of the Guadalupe, above New Braunfels, Texas, 

 Lindheimer; coll. of 1850, flowering in April. — Var. ^3. Wrightii : foliis mino- 

 ribus plerisque lineari-Ianceolatis subcoriaceis margine revolutis subtus strigoso- 

 canescentibus. Crevices of rocks on the San Pedro River, July, with old fruit ; and 

 a few flowering specimens were gathered on the return in Novcmber. (Sparingly 

 distributed as No. 228^) Fine fruiting specimens have also come to hand since our 



VOL. iii. art. 5. — 11. 



