STERCULIACEA. 135 
stipitate ovary. There is a cultivated specimen in Kew herbarium exactly like 
Coulter’s. 
5. Ayenia pusilla, Linn. Sp. Pl. p. 1354; Cav. Diss. v. t. 147. 
Texas and New Mexico to—Nortu Mexico, Chiricahui mountains, Sonora (Wright). 
—Also in South America from CoLomBia to Peru and Urvuaeuay, and in the WEsT 
Inpies. Hb. Kew. 
6. Ayenia rotundifolia, Hemsley, Diag. Pl. Nov. pars1,p.4. (Tab. XI. figg. 2 
et 5-8.) 
Frutescens, ramis glabrescentibus, foliis longe petiolatis ovato-rotundatis crenatis utrinque molliter 
pubescentibus, floribus axillaribus solitariis vel pedunculis 2-8-floris, petalis longe graciliterque 
unguiculatis, limbo basi sagittato, ovario longe stipitato. 
Frutex, ramis teretibus gracilibus elongatis, novellis dense breviterque cinereo pubescentibus. 
Folia longe petiolata, velutino-pubescentia, ovata, rotundata vel cordata, 6-12 lin. lata, crenulato- 
dentata, apice obtusa vel retusa, petiolo gracili 4~7 lin. longo, stipulis parvis linearibus. Flores 
in axillis foliorum solitarii vel pedunculis 2-3-floris, pedicellis gracilibus basi bracteolatis ; sepala 
4 vel 5, membranacea, ovato-lanceolata, ad 2 lin. longa, extus stellato-pubescentia, intus colorata ; 
petala 4 vel 5, tenuiter unguiculata, ad 4 lin. longa, lamina subquadrata eglandulosa angulis 
inferioribus breviter caudatis; stamina 3, filamentorum tubo 14 lin, longo, antheris 3-locu- 
laribus ; ovarium stipitatum, pubescens, 3-loculare (?), stylo brevi, stigmate capitato. Fructus 
mihi ignotus. 
Soura Mexico, Zimapan (Coulter, 1514). Hb. Kew. 
Allied to A. microphylla, but differing materially in the distinctly stipitate ovary &c. 
EXPLANATION OF TAB. XI. Fide. 2 er 5-8. 
Fig. 2, portion of a plant, nat. size; 5, a flower, enlarged; 6, staminal tube cut open and showing 
attachment to the petals; 7, limb of a petal with one of the 3-celled anthers attached to the 
under surface ; 8, section of the ovary. . 
7. Ayenia sidefolia, Hemsl. 
Cybiostigma sidefolium, Turcz. in Bull. Soc. Nat. Mose. 1852, ii. p. 156. 
Soutn Mexico, Oaxaca, Pacific coast (Galeotti, 326), without locality (Bates), Hb. 
Kew. 
8. Ayenia, sp. 
Sours Mexico, around Toluca in the province of Mexico (Andrieur, 504). Hb. Kew. 
16. BUETTNERIA. 
Buettneria, Linn. Gen. Plant. n. 268; Benth. et Hook. Gen. Plant. i. p. 225. 
About fifty species, whereof ten are found in the tropics of the Old World, and the 
rest in America. 
