cherrima and H. Cuatrecasana, It differs from the former 
in having a much more finely sinuate margin, in having 
a smooth (instead of a rather muricate-subtuberculate) 
upper surface, in being more finely tomentose beneath, 
and in being membranaceous (rather than coriaceous) and 
generally smaller. From the latter, it can be distinguished 
by differences in the shape and margin of the leaflets. 
Herrania Cuatrecasana is conspicuously and gradually 
decurrent towards the base and has a very remotely and 
obscurely crenate-denticulate margin. 
In the form of its fruit, Herrania tomentella approaches 
H. Cuatrecasana more closely than HZ. pulcherrima. The 
capsule of Herrania pulcherrima has strongly cultriform 
ribs with stinging hairs, whereas that of HZ. tomentella 
has broadly rounded ribs without stinging hairs. Further- 
more, floral differences between HZ. pulcherrima and H. 
tomentella are marked, especially in the staminodes, which 
are apically trifid in the former but acute in the latter. 
Although there are a number of resemblances between 
the capsules of Herrania tomentella and H. Cuatreca- 
sana, the soft indumentum and lack of stinging hairs in 
the former are in sharp contrast to the condition in the 
latter where, except for stinging hairs along the ribs, the 
surface is glabrous or glabrescent. There are likewise 
several floral differences. 
The leaflets of Herrania tomentella are borne in a 
partly erect position. This is also true of Herrania Cua- 
trecasana and H. pulcherrima and possibly of all species 
which have a noticeably swollen callus at the base of the 
leaflets. In this erect position of the leaflets, Herrania 
tomentella differs strikingly in habit from the only other 
species known in the Macarena, Hi. nitida, which has 
leaflets which tend to be rather reclinate. 
A study of the fruit of the material fromthe Macarena 
has clarified a confusion of long standing. Although 
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