--Anal cell of fore wing (3A) incomplete (petiolate
, with veins 2A+3A reduced, as in Fig.
Larger leaf petiolate
, the petioles 0.4-1 cm long, hirsute with 7-10 celled trichomes; blade asymmetrical, oblanceolate, 15.3-19 x 5-5.5 cm, basally oblique, apically acuminate, marginally irregularly dentate, adaxially green, pilose with 8 celled trichomes, abaxially pale green, pilose with 5-7 celled trichomes, 9-10 veined on the larger side of the blade.
The different species of Marcgraviastrum are sprawling epiphytic, hemi-epiphytic or terrestrial shrubs and lianas with sessile or petiolate
leaves, and the venation is pinnate brochidodromous.
Cauline leaves not auriculate, petiolate
or sessile, sometimes absent 22 2(1).
can be easily distinguished from the previously known species of the group by its smaller leaves which are only shallowly lobulate, faintly serrate and shortly petiolate
and its distinctly smaller flowers.
6.6 x 3.5 cm, green but becoming castaneous toward the base with age, membranous, nerved, nerves becoming prominent in dry leaves, glabrous adaxially, sparsely and inconspicuously brownlepidote to glabrous abaxially, entire, enfolding and completely covering the elongated stem; blades very narrowly lanceolate, attenuate-caudate, narrowed toward the base but not petiolate
, suberect-arcuate, 32-42 x 2.2-2.5 cm, distinctly nerved mainly adaxially, thin in texture, canaliculate toward the base, green, sparsely and inconspicuously pale lepidote near the apex adaxially to glabrous, margins entire.
First metasomal segment: petiolate
, with wide part posteriorly = 0; filiform = 1; filiform basally, widening gradually after spiracles = 2; filiform basally, widening abruptly after spiracles = 3; filiform basally, little widened after spiracles = 4 20.
Leaves 33-12.2 cm long; subsessile or short petiolate
, petiole 2.5-10 (-15) mm long; pulvinus 1.2-2 mm diam; rachis 0.6-1.8 cm long; extrafloral nectaries 2, ovoid, ovoid-ellipsoid, occasionally ellipsoid-fusiform or short stipitate, sessile, located between all pairs of leaflets, 9-20 x 8-13 mm; leaflets 2 pairs, coriaceous, rough, pubescent, the distal 21-94 x 6-29 mm, the proximal 17-70 x 8-28 mm, elliptic, ellipticoblanceolate and ovate, venation brochidodromous, nervures 8-14 pairs, apex acute, emarginate and obtuse, base subcordate-oblique, margin revolute, ciliated.
These are unlobed, simple, petiolate
leaves with pinnate venation; they vary in shape from elliptic to oblong, ovate, or obovate.
Fore wing sparsely hirsute; distal abscissa of M and Cu1 spectral or absent (Figure 9); areolet absent or small and petiolate
above, petiole usually longer than height of areolet....
Leaves basal, petiole 3-10 cm long; leaf blade suborbicular to reniform in outline, palmately 5(-7)-lobed, sometimes with additional pair of smaller lobes, 1-3 x 1-2.5 cm, cordate to subtruncate at base; lobes broadly ovate, entire, obtuse to subacute at apex; cauline leaves absent or 1, petiolate
, much smaller than basal leaves.
Leaves opposite, strongly anysophyllous in a pair, membranaceous; larger leaf sessile or shortly petiolate
, petioles 0.1-0.3 cm long; blade asymmetrical, lorate 9.5-18 x 1.2-3 cm, base oblique, apex attenuate, margin slightly serrate, adaxially green, densely sericeous with 8-10 celled trichomes and with sparsely distributed white unicellular setulose hairs; abaxially green or reddish with contrasting deep purple in the apical half or two third (2/3) of the leaf, sericeous with 5-celled trichomes, more densely packed on the veins, 8-9 veins on the larger side of the blade; smaller leaf sessile, blade asymmetrical, lanceolate 1-2 x 0.3-0.7 cm, base oblique, apex attenuate, adaxially green, sericeous with 8 celled trichomes, veins obscure; abaxially golden sericeous with 5 celled trichomes.