LATIN TERMS USED IN BOTANY TO DENOTE COLOUR. 99 
ConsPEcTUS OF THE SKCTIONS. 
I. Terms implying absence of colour. 
White. 
IIT. ab (cold neutrals). 
‘ pens (warm neutrals). 
ed. 
. Purple. 
. Terms implying colour, without defining it; and vague terms. 
I.—Amongst the terms expressive of absence of colour we 
find hyalinus, vitreus, vitricus, gece (but used by Charleton, 
following classical usage, as a light green); agueus, clear as water ; 
erystallinus, clear as ice; pellucidus, er imply: ng clearness ; semi- 
pellucidus, some amoun nt of opacity; diaphanus, transparent ; achroos 
and incolor for scarious. Bischoff also adds fenestratus, but this use 
of the word is certainly very unusua 
is E is not a colour, but it produces a feeling of a a 
tint, not et ante considered in the foregoing section. Beginning 
with the most general and characteristic of the words expressive of 
white, we have albus, a dead white ; niveus, and evga A erals 
brilliantly pure white (as in Galeandra nivali s Hort., from fea”) 
lip; being a native of the tropics, it cannot be pai to its 
habitat); virgineus, Sri ished bsg ; papyraceus, paper- -white ; 
candidus and candidissimus, shining white; then the four terms, 
cretaceus, caleareus, pei gypseus, seem syno nymous, chalk-white ; 
cerussatus, plaster-white or white-lead-coloured, must mean the 
same ; argillaceus, white clay (but also used for a yellower tint). 
Albidus, albidulus, albinus, albineus, albellus, candidulus, exalbidus, 
all mean whitish, with probably but little to choose between them; 
milk-white, that is, having a suffusion of blue, is represented by 
lacteus, pacegrtant galactites, galacticolor, galachrous. Silvery white 
is argenteus, argentaceus, argentatus, argyraceus. Something short of 
nbeolute siacilie is suggested by albicans, albescens, speed pena 
hite; ivory-white by eburneus and eborinus; a yellower tinge by 
ermineus, cremeus, cremicolor, cream-coloured; and an tl-de fined 
‘‘ marble-white’’ by alabastrinus and shies but the latter is 
used in another sense, and therefore ambigu 
IlI.— The lightest tone of Grey is denoted 7 canus and i incanus ; 
cinereus is the grey of wood-ashes, with its allie 
grey), cinericius, cineraceus, tephreus, tephrus; cr retace- paid seems to 
come here ; lewcopheus must benear this. Griseusis darker, butgriseolus 
and grisellus are perhaps intermediate ; livivius, darker than / griseus, 
with a suspicion of bro own. Casius and cesiellus originally represent 
the blue-grey of the iris of the eye; liveus, livius, lividus, lividulus, 
duller, with less colour; pavonianus is also added by Charleton. 
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