28 ON SOUTH-AMERTCAN APOCYNACE^. 



CONDTLOCARPON. 



The following new species may be added to nine others enumerated by Dr. Miiller, 

 which will afford a few more particulars regarding the peculiar structure of the genus : — 



CoNDYLOCARPON GRACiLE, nob. : scandcns, ramulis tenuibus teretibus, fiiscis, striolatis, lenticellato- 

 verruculosis, ad axillas vaginula crassissima prominente nodosis : foliis oppositisj ovatis, imo 

 obtusis, apice in acumen subbreve recurvatum subito constrictis, marginibns resvolutis, sub- 

 coriaceisj supra profunde viridibus, opacis, nervis recte divergentibus et arcuatim nexis semi- 

 immersis, subtus paUidis, opacis, punctulis albis leprosis minute granulatis, costa nervisque promi- 

 noilis ; petiolis tenuibus, proiunde canaliculatisj limbo 5-7plo brevioribus, ad nodmn prominentem 

 insitis, saepius recurvatis : paniculis axiUaribus, folio 3-3plo longioribus, late, laxe, iterumque 

 divisis; pedunculo tenui, folio sequilongo, vel breviore, apice verticUlatim ramoso; ramis 2-5, 

 longissimis, gracillimis, divaricatis, iterumque pluri divisis ; ramulis subcapillaribus, ultimis alter- 

 natim 5-6-florisj bracteolis minutis, membranaceis, ciliatis; pedicellis tenuissimis, calyce 5-6plo 

 longioribus ; floribus paxvis : finictu pendulo, lomentis geminis, longissimis, 6-8-lobis, lobis isthmis 

 anguste interceptis, acute eJlipticis, valde compressis mono-dispermis. In Brasilia, prov. Rio de 

 Janeiro : v. v. et sice, in herb, meo inflore (n. 8086) etfructu (n. 4019), ad Mage, Freixal, et Iguassu. 



A species easUy distinguished by its nodose axUs, its very laxly spreading inflores- 

 cence, with almost capillary ramifications. The branchlets are f line thick, with axils 

 3-5 in. apart, swollen by a thickened interpetiolar cup, upon the margin of which the 

 petioles are seated : the leaves are 1|-3J in. long, |-lj in. broad, on a petiole 4-6 lines 

 long: the panicles are opposite, 5-6 in. long, 6-8 in. broad; peduncle slender, 1-2 in. 

 long, the very slender primary branches 1| in. long, the secondary and tertiary branch- 

 lets gradually shorter ; pedicels 1 Hne long ; sepals ^ line long, membranaceous, ciliate ; 

 tube of corolla 1 line long, segments of border twice as long as the tube, spathulately 

 orbicular, mucronated, expanded horizontally on the sinister margin, which is mem- 

 branaceous, translucent, closely spotted with red dots ; stamens seated at the base of the 

 short tube; disk, none visible; ovaries ovate, collateral; style extremely short and thick, 

 with a globose clavuncle ; 2 stigmata, small, acute, pilose. Loments 6-8 in. long, strangu- 

 lated into 6 or 8 flattened, elliptic, indehiscent lobes f in. broad, costately nerved on 

 the dorsal face, 1-sulcated on the ventral side along the line of the intruding placenta ; 

 pericarp hard, thickly pithy on the edges : seed fusiform, 6 lines long, 1| line broad, 

 deeply sulcated for the reception of the placenta ; testa black, corrugulated, with a white 

 Mnear hilum 2 lines long, in the middle of the furrow. 



A drawing of this species, showing its floral and carpological analyses, is given in 

 Plate IV. B. 



Manothrix, 

 This genus is proposed for two Brazilian plants which I collected in the Organ Mountains 

 in 1827 ; it approaches Craspidospermvm in its fruit and ecomose seeds. A single flower 

 was found upon one of them ; and the other was simply fructiferous. The genus is remark- 

 able for the peculiar structure of the hairs, of a reddish colour, which cover the seeds, 

 and which, seen under the microscope, exhibit a capillary thread in the axis, from which, 



