340 PH ANEROGAMIA. 



stipules, of which there is no trace in our plants. The true affinity 

 of our genus is manifestly with AcronycUa and Melicope ; from both 

 of which it differs in habit, in the deciduous calyx, &c. ; from the 

 former likewise in the deeply four-lobed ovary and fruit ; from the 

 latter in the valvate aestivation of the corolla, and in the union of the 

 carpels by their bases to a greater or less extent. The last-named 

 character, however, may be invalidated by an ambiguous species from 

 the Samoan Islands, which I am obliged for the present to append to 

 this genus, since the valvate aestivation of the corolla excludes it from 

 Melicope, and the separation of the ovaries, from Acronychia* 



As this is a characteristic and important genus of the Hawaiian 

 Islands, and especially of the forest-clad sides of the volcanoes of her 

 fabled abode, I dedicate it to the Hawaiian goddess Pele. 



* Species Sandwicenses, vera,. 



1. Pelea clusi^efolia. (Tab. 35.) 

 P. glaberrima; foliis ter-^quateniatim verticillatis vel oppositis obovatis 



* The diagnoses of these allied genera may be expressed as follows : — 



1 . JEstivatio corolla valvaris. Flores poly garni. 



1. EUODIA. Stamina 4. Ovaria 4, discreta, stylis tantum connexa, in disco urceo- 

 lari inclusa. Folliculi bivalves. 



2. ACRONYCHIA. Stamina 8. Ovaria in unicum quadriloculare omnino coalita. 

 Fructus aut indehiscens, aut loculicide quadrivalvis. 



3. PELEA. Stamina 8. Ovaria in unicum quadrilobum coalita. Capsula quadri- 

 partita, stellata, tetracocca. 



2. JEstivatio corollas, imbricativa. Ovaria discreta. 



4. MELICOPE. Flores hermaphroditi.(?) Stamina 8. Ovaria 4, stylis coalita, disco 

 brevissimo insidentia. Cocci 4, bivalves. 



5. PITAYIA. Flores polygamo-dioici. Stamina 8. Ovaria 4, gyuophoro satis elon- 

 gato insidentia. Styli superne coaliti. Baccse indehiscens. 



6. ZANTHOXYLUM. Flores dioici. Stamina 3-5. Ovaria 1-5, gynophoro brevi 

 insidentia. Folliculi carnosi semibivalves. 



