304 OBSERVATIONS ON THE NATURAL FAMILY 



related to Ozothamnus, from which it is to be distinguished 

 chiefly by the paleae of its receptacle. 



W I propose to name this genus in honour of M. Henri 

 Cassini, whose well-conducted investigation of Composite 

 has already thrown much light on the structure and 

 economy of the more important parts of fructification of 

 this difficult class: and especially of those organs from 

 which the distinguishing characters of Cassinia are here 

 derived. 



I shall add the characters of the species of this genus, 

 which, like Ozot/iamnus, admits of subdivision into two 

 sections; and I have appended to it Calea spectabilis of 

 Labillardiere, a plant corresponding with it in character, 

 but differing very much in habit from all the other species. 



Cassinia. 

 Calese sp. Labillardiere. 



Involucrum imbricatum, scariosum, pauciflorum. Re- 

 ceptaculum: paleis distinctis, squamis intimis involucri 

 subsimilibus. Flosculi tubulosi, vel omnes hermaphroditi 

 vel paucissimi feminei angustiores in ambitu. Antlierce 

 (inclusae) basi bisetse. Stigmata apice obtuso subtruncato 

 hispid ulo. Pappus pilosus v. penicillatus, persistens. 



Frutices. Folia sparsa, scepius angustata, marginibm 

 recurvis. Inflorescentia terminalis, corymbosa rariusve 

 paniculata. Involucra alba mine cinerea raro aurea ; 

 squamis intimis scepius apice comiiventibus, nunc patulis et 

 radium brevem obtusum efformantibus . 



t Involucrum radiatum {squamis intimis apice patulis). 



1. C. leptop/iglla, foliis lineari-lingulatis subter ramu- 

 lisque incanis, corymbis terminalibus, involucris turbinatis. 



Calea leptophylla. Forst. Prodr. n. 287. Willd. Sp. PL 

 iii, p. 1796. Persoon, Syn. ii, p. 406. Poiret, Encycl. 

 Suppl. ii, p. 28. 

 127] Loc. Nat. Novae Zelandiae campi arenosi prope 



