BOTANY OF TERRA AUSTRALIS. 25 



Good Hope, ill equinoctial and North Africa, in the different 

 regions of America, in New Zealand, in India, very sparingly 

 in North Asia, and lastly in the South of l^AU'ope, where, [553 

 however, only two species have been observed, namely, 

 Anagyris fo3tida, and Cercis siliquastrum ; but the latter 

 having a straiglit embryo and a habit approaching to tliat 

 of Bauhinia, rather belongs to Lomentaceac. 



Among the Diadelphous genera of Terra Austral is the 

 most remarkable in habit and structure, namely Platylo])ium, 

 Bossisea, liovea, Scottia, and Kennedia, are found chiefly 

 in the principal parallel and higher latitudes ; within the 

 tropic the greater part of these cease to exist, and most of 

 the Q-enera which there occur are common to other couu- 

 tries, especially India. 



ATHEROSPERME/E.^ Jussieii, in his excellent me- 

 moir on IMonimieee^ has referred Pavonia of Ruiz and 

 Pavon and Atherosperma of Labilardiere to that order, from 

 the other genera of which, namely, Anibora, ]\Ionimia, and 

 Ruizia, they appear to me very difierent, not only in the iu- 

 sertion of the seed, the texture of the albumen, and relative 

 size of the embryo, but in having antheroc similar to those 

 of Laurinse. I separate them therefore into a distinct 

 family with the name of Atherosperme.e. The propriety 

 of this separation is confirmed by the discovery of two New 

 Holland plants, evidently belonging to this family, but 

 which have hermaphrodite flowers ; a structure not likely 

 to occur in IMonimieae, in which what has been termed 

 calyx is more properly an involucrum. 



^ Atherosperme.e, Flores dicliues vel hermaphroditi. Calyx monophyllus, 

 limbo diviso : laciniis sjepe duplici scrie, iutcrioribus omuibusve semipetaloidcis : 

 Squamulce faucis in feniineis et liermaphroditis. Corolla nulla. Stamina in 

 masculis floribus numcrosa, fundo calycis inserta, squamulis aucta; in lier- 

 maphroditis pauciora, faucc imposita : Anther!^ adnata?, biloculares, loculis val- 

 vula longitudinali a basi ad apicem dehisccnti. Ocaria uiio plura, sjepius 

 indefinita, monosperma, ovulo crecto : Styli siinpliccs, nunclatcralcs v. basilarcs : 

 Slifjmala indivisa. rericarpia clausa seininiformia, stylis pcrsistcntibus phi- 

 mosis aristata, tubo aucto calycis inclusa. Embryo crcctus brevis, in basi al- 

 buminis carnosi mollis. 



Arbores. Folia opposita simpUcia exstipulala. Pcdiinculi a.villan's, unijlori. 



' Annales du museum, 14, /;. TIG. 



D. H. HILL LIBRARY 

 North Carolina State Colleg* 



