BOTANY OF TErvRA AUSTRALIS. 27 



CELASTRINJG.^ This order compreliends the greater 

 part of the first two sections of the Rhamni of Jussieu ; 

 it is obviously different from the more hmited order of 

 Rhamneae, which I have ah'eady attempted to define, and 

 in many respects so nearly approaches to the Hippocra- u>o-o 

 ticcce of Jussieu," that it may be doubted whether tlicy 

 ought not to be united. 



In New Holland the Celastrinac are not numerous, nor 

 do they form any part of its characteristic vegetation ; 

 their distribution is somewhat different from that of 

 Rhamneae, for they are found either in the principal pa- 

 rallel; or within the tropic. 



STACKHOUSEiE.^ Stackhousia of Dr. Smith;^ 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 unpublished genus, exactly agreeing with it in flower, but 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 

 Euphorbiacese ; to both of which, but especially to the 

 former, it seems to be related 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 southern extremity of Van Diemen's 

 Island, and to the North coast of New Holland. 



^ Celasthin^e. Cal)/x 4-5-partitus, oestivatioue imbrlcata. Petala 4-5. 

 Stamina totidem, cum petalis alternantia, insertioiie ambigue pcrigyua. Ovarium 

 liberum, 2-4-loculare loculis 1-poljspermis, ovulis erectis (raib pendulis) : 

 Slyltis 1-4. Pericarjniim capsulare, vel clausum (Baccatum, Drupaceum vel 

 alatum.) Semina in capsularibus arillata. Umbrj/o fere longitudiue albumiuis 

 carnosi, axilis. 



Erutices vel Arborcs. Folia simpUcia {raw composita) alterna vel opposita^ 

 dipulata stipuUs sapius mimUis, quancloque nullis. 



- Annales da miis. 18, p. 480. 



3 StackiiousE-E, Calyx 1-ph. 5-fldus, ncqualis : tubo ventricoso. Petala 5, 

 cequalia, summo tubo calycis iiiserta : unguibus coliaercutibus in tubum calyce 

 loiigiorem ; laminis angustis stcilato-patulis. Stamina 5, distincta, iiurqualia 

 (duo altcnia breviora), fauci calycis inserta. Ovarium liberum, 3-5-lobum, 

 lobis discretis monosperniis, ovulis erectis : Styli 3-5, nunc basi cohajrentcs : 

 Stigmata indivisa. Pericarpium 3-5-coccum, coccis evalvibus, aj)tcris v. alatis ; 

 columna ccntrali persistenti. Embryo erectus axilis, lougitudine fere albuniinis 

 carnosi. 



Herbfc. Folia simplicia^ integerrima, sparsa, quandoque minuta : Stipuloo 

 laterales minutissima;. Spica ierminalis ; Jloribi'.s tribracteatis, 



^ linn. soc. transact. 4, /?. 218. 



