Genus Isodendrion — St. John 
219 
crassata basi incrassato, petiolis 1-6 mm. 
longis validis subnigris deinde pallidioribus 
et suberiferis, laminis 3.3-15 cm. longis 
crassis subcoriaceis valde elevato-reticulatis 
ellipticis vel oblanceo-ellipticis plemmque 
obtusis cuneatis marginibus minime undu- 
lato-crenulatis nervis secundariis in uno 
latere 8-10 adscendentibus arcuatis sinuatis 
confluentibus, floribus solitariis axillaribus, 
pedunculis ad 1 mm. longis ad apicem bi- 
bracteolatis, bracteis 1.5 mm. longis ovatis 
acutis glabris, pedicelis 2-3 mm. longis glab- 
ris, sepalis 3. 2-3. 7 mm. longis 1 mm. latis 
anguste oblongo-lanceolatis membranaceis 
perspicuis albis vel minime viridibus 5- vel 
plurimi-nervosis glabris praeter marginibus 
sparse ciliolatis apice piano nigro-fusco, 
petalis irregularibus unguibus lateraliter im- 
bricatis tubo imitans, petala inferiore (post- 
quam bullanda) 6.2 mm. longa, ungue 4.5 
mm. longo 1.5 mm. lato 3-nervoso elliptico- 
ligulato ad basem membranaceo ad apicem 
incrassato, limbo 2.1 mm. longo 1.3 mm. 
lato ciliolato obovato carnoso non pellucido 
canaliculato apice subacuto, petalis lateralibus 
6.3 mm. longis unguibus 3.9 mm. longis 1.2 
mm. latis elliptico-ligulatis membranaceis 
3-nervatis, limbis anguste ellipticis ciliolatis 
carnosis 3-nervatis, petalis superioribus 6.2 
mm. longis, unguibus 4.2 mm. longis ellip- 
tico-ligulatis membranaceis 3-nervatis, limbis 
2 mm. longis 0.9 mm. latis anguste oblongo- 
ellipticis ciliolatis, staminibus subaequalibus 
inferis 2 mm. longis, filamentis 0.8 mm. longis 
ligulatis, antheris 1.2 mm. longis 0.5 mm. 
latis anguste ellipticis subsagittatis, connec- 
tivo mucronato, ovario 1.2 mm. longo 
ovoideo longitudinaliter 3-lobato, stylo 3.6 
mm. longo subulato, stigmate obliquo 
pyramido-conico; capsulis 7-8 mm. longis 
3.5 mm. latis lanceo-ovoideis stramineis 
longitudinaliter trilobatis rostratis, placentis 
2-ovulatis, seminibus 2-2.2 mm. longis 1.8-2 
mm. diametro obovatis lucidis fusco-macu- 
latis ad apicem truncatis. 
DESCRIPTION OF TYPE: Shrub; at least 8 dm. 
tall; older branches 3-4 mm. in diameter, the 
bark brown, roughened by longitudinal fur- 
rows and transverse checks, the stipules 
mostly inconspicuous; leaf scars 0.8-1. 5 mm. 
wide, lunate-oval, pale, with 3 bundle scars; 
twigs leafy for 1.5-7 cm., bearing 5-13 leaves, 
these ascending at 45°, crowded; leafy twigs 
1.5-2. 5 mm. in diameter, glabrous, reddish to 
greenish, roughened by the persistent stip- 
ules; nodes 1-8 mm., commonly 3 mm. apart; 
stipules 2. 5-3.1 mm. long, 1.3-1. 5 mm. wide, 
narrowly oblique deltoid or oblong deltoid, 
glabrous on the back and margin (though a 
lacerate membranous margin may appear 
ciliate on occasion), the base thickened, 
pillow-like, the midrib heavy and prominent; 
petioles 1-6 mm. long, stout, blackish, later 
pale from corky distortions and cracks; blades 
3.3-15 cm. long, firm, thick, subcoriaceous, 
prominently raised fine reticulate veined, el- 
liptic to oblance-elliptic, mostly obtuse, the 
base abruptly cuneate, the margin low undu- 
late-crenulate, the lateral veins 8-10 on a side, 
ascending arcuate, wavy and interconnected 
well back from the margin; flowers single, 
axillary; peduncles 1 mm. or less in length, 
bibracteolate at apex; pedicels 2-3 mm. long, 
glabrous; peduncular bracts 1.5 mm. long, 
ovate, acute, glabrous; sepals 3. 2-3. 7 mm. 
long, 1 mm. wide, narrowly oblong-lanceo- 
late, membranous, transparent, whitish or 
slightly greenish tinged, 5- or more-nerved, 
glabrous except for the margin sparsely cilio- 
late, the apex flat, dark brown; corolla irregu- 
lar, the lower two thirds of each petal forming 
a claw, imbricate laterally, the upper ones 
outside, the lower inside, imitating a corolla 
tube, the limb expanding and reflexing in 
anthesis; lower petal the largest and much 
more fleshy, when boiled 6.2 mm. long, the 
claw 4.5 mm. long, 1.5 mm. wide, elliptic- 
ligulate, 3 -nerved, membranous below the 
middle, above the middle gradually becom- 
ing thicker, fleshy and opaque, the limb 2.1 
mm. long, 1.3 mm. broad, ciliolate, obovate, 
fleshy and opaque, the apex subacute, the 
limb and upper half of the claw rigidly 
channeled; lateral petals 6.3 mm. long, slight- 
