32 SPECIES BLANCOANAE 
From his method of work errors were unavoidable. These 
errors consisted of faulty original observations which could not 
be later corrected by consultation of specimens on which the 
original descriptions were based; of descriptions, in some cases, 
of individual species based on material originating from entirely 
different plants, sometimes belonging in distinct families; of 
describing the same species twice under different genera, once 
from flowering specimens and once from fruiting specimens; 
and, from placing too much dependence on the Linnean system of 
classification, by describing the same species twice under different 
genera, in different classes, from flowering specimens. Thus 
Paliurus lamio Blanco is based on leaves and flowers of some 
species of Canarium of the Burseraceae, and a fruiting speci- 
men of Dracontomelum of the Anacardiaceae; Trichilia volubilis 
Blanco, a species of wholly doubtful status, is apparently based 
on leaf specimens of some species of Derris of the Leguminosae, 
perhaps on the fruits of some meliaceous plant, and as to the 
properties and native names ascribed to it, Albizzia saponaria 
Benth. ; Cedrela taratara Blanco is apparently based on the wood 
of Pterocarpus of the Leguminosae, and perhaps the leaves of 
some species of Dysoxylum or Aglaia of the Meliaceae; Illigera 
luzonensis (Presl) Merr. is described from flowering specimens as 
Gronovia ternata Blanco, and from fruiting specimens as Halesia 
ternata Blanco; Alchornea sicca (Blanco) Merr. is described 
both as Hxcaecaria sicca Blanco and as Croton drupaceum Blan- 
co; Sphenoclea zeylanica Gaertn. is described both as Pongatiuwm 
spongiosum Blanco and as Reichelia palustris Blanco; Plectronia 
glandulosa (Blanco) Merr. is described as Ixora glandulosa — 
Blanco and again as Polyozus bipinnatus Blanco. There are 
numerous other similar cases. 
In some cases species were named and described from the 
statements of others; that is, on hearsay evidence. Notable 
_ examples of this are Mangifera anisodora Blanco, which is mani-— 
festly nothing but a form of the common Mangifera indica Linn. 
and Musa paradisiaca var. ulnaris Blanco. In the case of this — 
banana Blanco states that it was known only to the Negritos of © 
Bataan, and that the fruits were a braza in length, that is about — 
two meters, that they were as thick as the calf of one’s leg, « 
and that the raceme was reduced to a solitary fruit. In all 
probability this relation was based primarily on the banana ~ 
locally known as tundoc, the largest one in the Philippines, the : 
fruits of which are about 30 centimeters in length. 
While Blanco correctly treated many of the genera proposed 
