INTERNATIONAL RULES FOR BOTANICAL NOMENCLATURE 21 
Apprenpix. Various RecoMMENDATIONS. 
XXXII. Botanists should use in modern languages Latin scien- 
tific names or those immediately derived from them, preferably to 
names of another kind or origin. They en peters the use of the 
latter unless these are very clear and in comm 
XXXIII. Every friend of science shrontd vevii the intro- 
duction into a modern language of names of plants which are not 
already there, unless they are ee from Latin botanical names 
by means of some slight alte 
XXXIV. The metric ea ‘cnly is used in botany for reck- 
oning weights and measures. The foot, inch, line, pound, ounce, 
&c., should be rigorously excluded from scientific ie. age. 
Altitude, depth, rapidity, &c., are measured in m Fathom 
knots, miles, &c., are expressions ‘Which should acca: ra 
scientific language. 
XXXV. Very minute dimensions are reckoned in p (micromilli- 
metres, microns, or thousandths of a millimetre), and not in fractions 
of a millimetre or line, &c. ; fractions encum mbered with ciphers and 
commas are more likely to give rise to mistakes. 
XXXVI. Authors are asked to indicate clearly and precisely 
the scale of the figures which they publish 
xX : Suprp ae hiy are ekiiuensil ¢ in degrees of the Centi- 
grade thermometer of Celsiu 
[Appended -. the Rules as officially issued (in French, German, 
or ppd is an “Index nominum genericorum utique conser- 
or cle 
sélacted the foowiite which appear in British books, as being of 
ig interest to our readers. The full list will of course be found 
n the official issue of the Rules.] 
Catystecia R. Br., Prodr. (1810) 48 
ane: Medik. in ides Vorles. Churpf. Phys. Gikon. 
Ges. i, (1791) 202 
Capsetta Medik., ee (1792) 85 
(Bursa [Siegesb .] Weber i in Wiggers, Prim. Fl. ee (1780) 
47: Marsypocarpus Neck., sieges iii. (1790) 91.) 
Cyicus Garin. sa ii. (1791) 885.* 
(Carbenia Adans., Fam. ii (1768) 116.) 
CoryDALis Medik., Phil. Bot. i. (1789) 96: afte Choix aye 19. 
Lar aereg: ‘Adans., Fam. ii. me )4 eS 
id. ; 
Medik., Phil, Bot. i. (1789) 110. 
* « Onicus L Spee, BL ed. i hp 826 naeagpeereak et Cnicum Gertneri 
Cirsium a. 3 em. oe no — genus foresee 
Linneanum in veg anes sitato ‘ Cirsium’ adhibitum [cf. Benth. in 
Bentham et Bock ro gon ii. (1873) 468) raideatun est; itaque vist 
Cirsium Adans. [DC. Prodr. vi. (1837) 634]. 
re 
