covers the greater part of the plains of the valley-floor 
(Leavenworth, 1946). 
Datura kymatocarpa may be readily distinguished 
from all other members of the genus by the semi- 
‘apillaceous bristles on its fruit and by its very charac- 
teristic seeds (see Plates). The specific epithet is derived 
from the Greek referring to the wavy hairs on the fruit. 
Datura reburra Barclay sp. nov. 
Pars quae adest usque ad 80 ecm. alta, caulibus dicho- 
tomis, glabris; foliis in ambitu ovato-lanceolatis, apice 
acutis, basi inaequalibus, margine irregulariter lobato- 
dentatis, usque ad 8 cm. longis, dimidio vel duabus-tertiis 
partibus latis, lamina utrinque glaberrima; floribus pedi- 
cellatis, axillaribus, primum plusminusve erectis, deinde 
post anthesin valde nutantibus; calyce prismatico, cari- 
nato-angulato, ca. 6cm. longo, apice 5-dentato, dentibus 
satis prominentibus, ovato-lanceolatis, 1.7—2 cm. longis: 
corolla infundibuliformi, plicata, usque ad 9.5 em. longa, 
fauce ampla, 5-dentata, dentibus setiformibus, ca. 5 mm. 
longis; capsula globosa, puberula, regulariter dehiscenti, 
pendula, spinis rigidis, acuminatissimis ornata, ca. 2 cm. 
longa; seminibus reniformibus, lacunis  luniformibus 
utrinque donatis. 
Dichotomously branching herb at least 80 cm. tall, but 
surely more (the specimen at hand is incomplete); young 
branches strigose, becoming glabrous with age, entire 
plant appearing glabrous except when young; leaves al- 
ternate, ovate-lanceolate in outline, with an acute apex 
and an unequal base extended into a puberulent petiole, 
up to 4.8 cm. in length; margins irregularly lobate- 
dentate; leaf blades mostly incomplete in our specimen, 
up to about 8 cm. or more in length, one-half to two- 
thirds as broad, surfaces essentially glabrous except for 
the sparsely strigose veins: erect pedicellate flowers borne 
[ 258 ] 
