Ncphropetalum. STKKCl'LI ACK.t. 341 



M. c<>kcuurik6lia, L. Ilcrtiaceuus, Hlightly hiHpi(iulou»-pube»reiit or aliiKMit glabruu* : 

 leaves uvuto ur siibeurdiite, thin, more liHjhely veined, rnontly Ion;; |ictiule«l : l1«Meri> ni|tiiai(>. 

 clustered at leafy summit uf Htem or Hliort branchletx : itcialit ^mull(•r, \mlv purpU' with 

 yellow claw.s. — Spec. ii. 675 (I'iuk. Aim. t. 44. f. 5; Dill. Klili. t. 17r,), ,|/, l„rtuta, (luipm. 

 1. c. ; Curtiss, distr. no. 400. — StrectH of Mobile, Suvannuli, and in ricoficid cmljuiknteuu, 

 Georgia, Feay, Curtiss. (Xat. from India.) 



3. WALTHfiRIA, L. {A. F. Walther, pruf.sM.r in L.Mi.hic.) — TmiMoil 



and sul>tri)|)i(:il MiHrulicoso phiuts : the coimuuu hpcnich uf wurltl-wide ilihtrihu- 

 tiou : sinall-lluwL'iLMl. — Geu. no. ;jr>2. 



"W. Americana, L. Canesceul-tomentose liccoming fiilvoutt: leave-t from o\nt«- to niir- 

 rowly oMong, serrulate, plicate-veined: (lowers in dense a.xillary fjlomerulen, hIiIiIi are 

 sometimes all sessile, sometimes pedunculate and tin ii often ('om]H>nnd : bnictletx and ralvx- 

 lobes subulate, liirsute-villous. — Spec. ii. 67.3; DC. I'rodr. i. A'ri; Chnpm. ¥\. 5'J. — Ke)» of 

 l-'loiida. (Most tropics.) 



"W. detonsa, Gkav. Minutely canc.xccnt, low and diffu.se : leaves round-oval Uj oblong, 

 somewhat serrulate, thin, with few and slender jirimary veins : (lowers in Binall 1<j«*o 

 glonjerules, some few se.-^sile in axils, mostly interruptedly spicate or concatenate on ^lend^•r 

 peduncle or along slender summit of stems: calyx and oviiry minutely canewent. — I'l. 

 Wright, ii. 24; Torr. Hot. Mex. Bound. 40. —S. Ari/.ona, 'r/imUr, W'riijht, I^mmun. (Ailj. 

 Mex.) 



4. AY!fiNIA, L<pf1. {Due d'Ayen, hoiwww-A patron.) — SnfTruticosf. hniall- 

 Howered, all from warm parts of AnR-rica, iMiplidrliiaccons in liaMt. IVfiicU 

 axillary.— It. 199; L, Syst. Nat. ed. Kt, 1217. v.S: Gt-n. ed. 0, no. Ki^U; DC. 

 Prodr. i. 487 ; Scliumann, 1. c. 101. 



A. pusilla, L. Low and diffuse from a ligneous base, pubcrulent : leaves most variable, 

 from orliicular or subcordate to narrowly lanceolate, .sernite or wnnelimes entire, fmm a 

 quarter to inch and a half long, slender-petioled : (lowers solitary or 2 or 3 in Hhort-|Kxluncle«l 

 fascicle: petals with nearly capillary claws and with a dorsal appendage to the IkmnI : 

 stamineal column slender ami .tt summit ai»ruptly cup-sh.iped. its sterile 1oIm-s roundish, 

 much longer than the anthers: ovary shorter than its slender sti|>o. which in fruit is «»f 

 variable length. — Act. Stock. 1756, 2.3, t. 2 (Lcefl. It. 200), & Sjk'c. ed. 2, ii. U:A; Cav. 

 Diss. V. 289, t. 147; Gray, I'l. Wright, i. 24, ii. 24; Schumann, 1. c. 105. t. 24 — Key Wot. 

 Florida, and southern borders of Texas, Arizona, and California. ( W. Ind., Mox. to Brazil.) 



A. microph:^lla, Gray, 11. cc. Woody and rigid, a foot or less high, rane.scent with 

 stellular imlic-cence: leaves orbicular or round-cordate, 2 or .3 line-* long, dent.ito : Howent 

 mo.stly solitary in the axils, short-pedicelled : Ikjo.I or limb of pet.-ils without dorsal ap|M-n- 

 dage: stamineal column short and wh(dly cup shaped; it,s sterile lol)08 thick, notcluil at 

 summit and surmounted by a rcflexed acuminate appendage: ovary and capnule shortly 

 stipitate. — Rockv ravines, southwest borders of Tex.xs to S. Arizona, Wright, I'ringlt. 

 (Adj. Mex.) 



5. NEPHROP^ITALUM, Robinson & Grocnman. (N<«/)p<k. kidney, 

 Trirahn; petal. ) — St(,llate-t()iiRiitulo.se slirul) witli simple ovat.- pt-tiolatf crt-nati- 

 dentate leaves and very small flowers in pcdnnenlate axillary few-tU>\veri-<l 

 umbellifnrm cymes. — A single species of the habit of Aijrnut and reontly 

 di.'^cov.red on the Texan frontier. [Ry B. L. Robinson.] 

 N.*Pringlei, Kobinson & Gukksman. Stems terete, at first cinor(vm«-tomontul.wo. woo 



glabnite: leaves ov.ite, obtustdy .ncuminate, cren.ite-<lent.it.-. |.almntely 7-n<rved. d»-<-ply 

 cordate with a narrow sinus, finely stellatojiubescent above, paler and tomentnl.««- Un.aih. 

 .3.J to 5 inches in length: cymes an inch in length. 2-3 (lower.-.! ; jMMlireU nU-ut .•.|ualling 

 the petluncles: flowers greenish, only a line in diameter. — Hot. (.Ja/. xxii. 16H. — Valley of 

 the \V\o Grande at Hidalgo, Texas, Primjle, uo. 2272. 



