Natural Orders .] 
APPENDIX. 
555 
fine, and in many respects so nearly approaches to the Hippocraticece of 
Jussieu,* that it may be doubted whether they ought not to be united. 
In New Holland the Celastrinae are not numerous, nor do they form 
any part of its characteristic vegetation : their distribution is somewhat 
different from that of Rhamnese, for they are found either in the principal 
parallel , or within the tropic. 
ST A CKHOU SEiE.'t Stackhousia ofDr. Smith, X and an unpublished 
genus, exactly agreeing with it in flower, but remarkably different in fruit, 
form a small tribe of plants, sufficiently distinct from all the natural orders 
hitherto established. I have placed it between Celastrinae and Euphor- 
biacese ; to both of which, but especially to the former, it seems to be re- 
lated in a certain degree. 
The Stackhouseae are peculiar to Terra Australis, and though found 
chiefly in its principal parallel, extend more sparingly both to the south- 
ern extremity of Van Diemen’s Island, and to the north coast of New 
Holland. 
# 
E U P HO R B I A C E/E . § This is an extensive and very general family, of 
which about 100 species have already been observed in Terra Australis. 
Of these the greater part exist within the tropic, but the order extends to 
the southern extremity of Van Diemen’s Island, and the greater number 
of the genera peculiar to this country are found in the principal parallel or 
higher latitudes. 
* Annates du mus . 18 . p. 486 . 
f Stackhouses. Calyx l-ph. 5-fnlus, fequalis : tubo ventricoso. Petala 5, asqualia, 
summo tubo calycis inserta : unguibus cohserentibus in tubum calyce longiorem ; laniinis 
angustis stellato-patulis. Stamina 5, distincta inaequalia (duo alterna breviora), fauci 
calycis inserta. Ovarium liberum, S-5-lobum, lobis discretis, monospermis, ovulise rectis : 
Styli 8-5, nunc basi cohserentes : Stigmata indivisa. Pericarpium 3-5-coccum, coccis 
evalvibus, apteris v. alatis ; columns centrali persistenti. Embryo erectus axilis, longitudine 
fere albuminis carnosi. 
Herbse. Folia simplicia, integerrima, sparsa, quandoque minuta : Stipulas laterales 
minutissimee. Spica terminates ; Jluribus tribracteatis. 
I Linn. soc. transact. 4. p. 218. § Jus. gen. 384. 
