260 ON SOTJTH-AMEEICAN APOCTJSTACE^. 



13. Hjcmadictyon ACUTiroLiuM, Benth. MSS. j Miill. /. c. p. 167. In Amazonas : v. s. in herb, meo, 

 Barra do Rio Negro (Spruce 1002) . 



A climbing species, with extremely slender, terete, obsoletely puberulous twining 

 branches, with axils 5-6 in. apart ; leaves lanceolate-elliptic, subobtuse or acute at the 

 base, gradually acuminate, chartaceous, glabrous, fuscous green above, somewhat shiaing, 

 with about 8 pairs of semi-immersed nerves, ferruginous beneath, opake, with scarcely 

 promiaulent nerves and fine transversely reticulate veins, 2|-3:| in. long, 9^15 lines 

 broad, on slender channelled petioles 2^3 lines long ; raceme solitary and lateral at the 

 nodes, patent, 3-4 in. long, on a slender peduncle bare for half its length, bearing above 

 about 10 flowers on rather distant, alternate or often geminate, very patent, slender 

 pedicels 6 lines long, supported by small acute bracteoles ; sepals ovate-acuminate, 

 reflexed at the summit, IJ line long, each with an inner rounded scale ; tube of corolla 

 cylindrical, a little swollen above the middle, 7 lines long, with a broadish crenulate 

 ring in the mouth and below it 5 linear short included appendages ; segments dolabri- 

 form, 3 lines long ; stamens inserted in the middle of the tube ; anthers with acuminate 

 summits extending beyond the mouth, with 2 long subdivergent basal prongs ; disk of 

 5 oblong-obtuse lobes, connate at the base, concealing 2 ovate ovaries. 



MiiUer's variety latifolia, from Minas and Cuyaba, is probably a distinct species, and 

 must not be confounded with Frestonia latifolia. 



14. HjEmadictton CALiGiNosuM, nob. : scandenSj ramulis tenuibus, teretibus : foliis eIlipticis,imo acutis, 

 apice breviter acuminatis, integris, submembranaceis, glabris, supra nitidis, caliginoso-viridibus, 

 subcorrugulatis, nervis tenuibus, subimmersis, subtus pallide ferrugineis, opacis, costa nervisque 

 rubellis prominulis, venis reticulatis immersisj petiolis tenuibus, canaliculatis, limbo 12plo 

 brevioribus : racemo laterali, reflexo, folium paullo excedente ; pedunculo subflexuoso, longo ; 

 floribus alternis ; pediceUis patentibus, imo bracteola parvula munitis ; sepalis subparvis, lanceolatis, 

 apice reflexis, cum squamula basaH bidentata ; corolla tubulosa, glabra ; tubo cylindrico, imo paul- 

 lulo latiore, fauce linea transversa vix prominula signato ; segmentis tubo triplo brevioribus, rotunde 



; dolabriformibus, angulo sinistro acutatis, dextrorsum convolutis; staminibus supra medium tubi, 

 e lineis retrorsum pilosis ortis ; antheris in conum cobserentibus, acuminatis, imo biaristatis ; 

 disco e lobis 5 oblongis, intus canaliculatis, imo connatis, ovariis 2 sequilongo ; stylo tenuissimo ; 

 clavuncula incrassata, 5-sulcata, imo in membranam peltatam expansa ; stigmatibus 2, minutis, 

 terminalibus. In Peruvia : v. s. in herb. Mus. Brit. Tarapota (Spruce 4924) . 



A species near H. acutifolium. The axils of the branchlets are 1-2 in. apart ; leaves 

 3f -4 in. long, l^lf in. broad, on petioles 3^4 lines long ; racemes 4 in. long ; flowers 

 1-2 lines apart ; pedicels patent or subreflexed, 4-5 lines long ; sepals scarcely a line 

 long ; tube of corolla 7 lines long ; segments 2^ lines long ; the 6 very short appendages 

 are affixed lower than usual, and are hidden by the anthers. 



15. H^MADicTYON MEMBKANACEUM, Miill. /. c. p. 167. In Brasilia, ad Taipu, prov. Parahiba? (Schott 

 5389) : non vidi. 



A species with subangular reddish branches, clothed with subhirtellous hairs bulbous 

 at the base, and with remote axils ; leaves ovate or oblong-ovate, acute at the base, 

 acuminate, thinly membranaceous, very translucent, very glabrous, darkish, marked by a 



