ll. p. 379, the specific name of
which was not derived from the colour of the under surface of the leaves,
which is, indeed, nearly white, but from the numerous orange-coloured
racemes, rendering this tree conspicuous at a great distance.

Grevillea longistyla and G. juncea of the same narrative, both belong to
that section of the genus which I have named Plagiopoda.

A single specimen, in most respects resembling Gr. longistyla, of which
possibly it may be a variety, but which at least deserves notice, has all
its leaves pinnatifid, instead of being undivided. It may be
distinguished by the following character:--Grevillea (Plagiopoda)
neglecta, foliis pinnatifidis subtus niveis; laciniis linearibus, stylis
glabris.

A single specimen also exists of Grevillea (or Hakea) lorea, prodr. flor.
Nov. Holl. p. 380, but without fructification.

24. GREVILLEA (CYCLOPTERA?) lineata, foliis indivisis lineari-ens
formibus enerviis subter striis decem paucioribus elevatis uniformibus
interstitia bis-terve latitudine superantibus, cicatrice insertionis
latiore quam longa utrinque obtusa, racemis terminalibus alternis,
pistillis semuncia brevioribus stigmate conico.

LOC. "It takes the place of the gum-tree (Eucalyptus) in the creeks about
lat. 29 degrees 30 minutes S." D. Sturt.

OBS. It is difficult to distinguish this species, which, according to
Captain Sturt, forms a tree about 20 feet in height, from Grevillea
striata. I have endeavoured to do so in the above specific difference,
contrasted with which the leaves of G. striata have always more than 10
striae, which are hardly twice the breadth of the pubescent interstices,
and the cicatrices of whose leaves are longer than broad, and more or
less acute, both above and below. This is a source of character which in
the supplement to the Prodr. Florae Novae Hollandiae, I have employed in
a few cases both in Grevillea and Hakea, but which I believe to be
important, as it not only expresses a difference of form, but also in
general of vascular arrangement.

25. PTILOTUS (latifolius) capitulis globosis, bracteis propriis calycem
superantibus, foliis ovatis petiolatis.

LOC. "In lat. 26 degrees S."--D. Sturt.

DESC. Herba diffusa, ramosa, incana. Folia alterna, petiolata, lateovata,
integerrima. Capitula ramos terminantia, solitaria vel duo approximata.
Bracteae laterales scariosae, sessiles, late ovatae, enerviae.
Perianthium; foliolis subaequalibus, lana implexa alba basi te