304 OBSERVATIONS ON THE NATURAL FAMILY 



related to Ozothamnus, from which it is to be distinguished 

 chiefly by the palese of its receptacle. 



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

 Cassini, whose well-conducted investigation of Compositee 

 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 Ozothamnus, admits of subdivision into two 

 sections; and I have appended to it Calea spedabilis of 

 Labillardiere, a plant corresponding with it in character, 

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



Cassinia. 

 Galeae sp. Labillardiere. 



T/ivolucrum imbricatum, scariosum, panciflorum. Be- 

 ceptaculum : paleis distinctis, squamis intimis involucri 

 subsimilibus. Floscidi tubulosi, vel omnes hermaphroditi 

 vel paucissirai feminei angustiores in ambitu. Anlherm 

 (inclusse) basi bisetse. Stigmata apice obtuso subtruncato 

 hispidulo. Pappus pilosus v. penicillatus, persistens. 



Frutices. Polia sparsa, stspiiis angustata, marginibus 

 recuTvis. Infiorescentia terminalis, corymbosa rariusve 

 paniculata. Involucra alba nunc cinerea raro aurea ; 

 squamis intimis seepius apice conniventibus, nunc patulis et 

 radium brevem obtusum efformantibus. 



t Involucrum radiatum [squamis intimis apice patulis). 



1. C. leptophylla, foliis lineari-fingulatis subter ramu- 

 lisque incanis, corymbis terminalibus, involucris turbinatis. 



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

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

 Suppl. \\p. 28. 

 137] Loc. Nat. Novse Zelandise campi arenosi prope 



