86 ON SOUTH-AMEEICAN APOCTNACE^. 



This plant bears much resemblance to a Fallesia, to which genus Riedel referred 

 G. Vellosii. It is a tree with a smooth bark; the axils of its slender branchlets are 

 about \ in. apart, except the three terminal ones, which are barely 1 line distant ; the 

 leaflets there are about 9 Hues long ; the leaves of the main branchlets are 2-2|- in. long, 

 1^1| in. broad, upon slender petioles 7 lines long; the peduncle of the corymb is 4 lines 

 long, its 3-4 branches 4 lines long, their 2 secondary branches 1^ line long, each bearing 



2 small flowers on pedicels ^ line long ; the sepals \ line long ; the tube of the coroUa 

 1^ line long ; the segments f line long ; the stamens, upon very short filaments, are 

 enclosed within the mouth of the tube. 



These characters all conform with Geissospermvm,, rather than with Fallesia ; its only 

 peculiarity is the more diminutive size of its flowers. 



A drawing of this species, and an analysis of its flower, are seen in Plate XII. a. 



The WTieeleria oppositifoUa, Sol., is described under Thyrsanthus velutinus, nob. 



6. Geissospeemum sericeum, Benth. & Hook. Gen. ii. 707 : Thyrsanthus sericeus, Sagot, MS. : ramis 

 subvalidis, dichotomis, ramiilis tenuibus : foliis alternis, ellipticis, imo acutis, apice in acumen 

 longiusculum suHto constrictis, chartaceis, margine undulatis, supra laete viridibus, opacis, obsolete 

 pilosis, eosta prominente, nervis prominulis, venis reticulatis^ subtus fulvide opacis, costa nervisque 

 sublanatis ; petiolo tenui, sulcato, obsolete puberulo, limbo 9plo breviore : racemis axillaribus con- 

 gestifloris, quam folium triplo brevioribus ; floribus parvis, ochraceo-pubescentibus ; corolla parva ; 

 segmentis angustis dextrorsum convolutis. In Guiana : v. s. in herb. Mus. Brit. he. cit. (Sagot 966). 



Its branches are 1-2 Unes thick, the branchlets more slender, with axils f-1 in. apart, 

 with a transverse line across the nodes ; leaves 3 in. long, IJ in. broad, on a petiole 

 1 lines long; panicles axillary, f-l in. long, on a stout peduncle 3 lines long, with 

 numerous approximate flowers, all covered with yellow tomentum; pedicels 1 line 

 long; sepals 2 lines long, linear oblong, obtuse; segments of coroUa linear, glabrous, 



3 lines long. 



Malouetia. 



This genus was established in 1844 by Prof. De Candolle, who placed it in his tribe 

 Tabeen^montane^, from which it was separated by Dr. Miiller. It has many species, 

 forming trees or erect shrubs, with opposite entire leaves, the nodes generally much 

 dilated by a thick transverse sheath, on which the petioles are inserted; the leaves 

 generally oblong and acute at both ends, or lanceolate, have ascending nerves, which are 

 often furnished below, at the angle of each nerve, with a poriferous gland. 



Malouetia, A. DC. : Sepala 5, parva, acuta, erecta, singula squamula acuta intus munita. Corolla 

 tubus cyHndricus, 5-nervis, saepe spiraliter tortus, medio paullo ventricosus, fauce constrictus, et ibi 

 ssepius squamulis 5 prsditus ; segmenta 5, oblonga, subacuta, simpliciter dextrorsum convoluta. 

 Stamina subinclusa, apice ssepius paullo exserta; filamenta ad constrictionem tubi inserta; antherm 

 lineares, acummatae, in conum cohasrentes, imo furcis 2 brevibus acutis armatje. Discus e lobis 5 dis- 

 cretis erectis subacutis; ovaria 2, eo paullo longiora, oblonga; stylus tenuis stamina attingens; 

 clavuncula incrassata cylindrica, imo membrana peltata donata ; stigmata 2, brevissime linearia, ter- 

 minaKa. Folliculi 2, teretes, sspius divaricati, glabri, aut rarius pilosi, sulco ventrali dehiscJntes, 

 suturae marginibus introflexis inplacentam cylindricam coalitis. Semina lineari-oblonga, valdecom- 



