319 [Mann. 



anthers oval. In the female flower the sepals are four times shorter 

 than the linear-ligulate petals, which are imbricated in aestivation ; 

 stamens reduced to four glands ; ovary unilocular, stipitate ; stigma 

 globular. 



Zanthoxylum Maviense sp. nov. 



Inerme, pube tenuiter velutina cinereum; foliis alternis 3-folio- 

 latis ; foliolis coriaceis ovalibus (lateralibus basi hinc excisa valde inae- 

 quilateris) integerrimis hand punctatis ; paniculis axillaribus ; coccis 

 solitariis estipitatis lunulato-ovoideis. 



Maui, (Remy, 615.) 



The specimen is apparently from an unarmed tree, bearing ma- 

 ture fruit only, it is cinereous with a fine velutinoiis pubescence, 

 especially on the under surface of the alternate trifoliolate leaves. 

 Petioles fifteen to twenty lines long. Leaflets ovate, truncated at the 

 base ; the two lateral ones unequal, the upper base being three lines 

 shorter than the lower, two to two and a half inches long by fifteen to 

 twenty lines wide. Panicle several-flowered. Carpel solitary 

 estipitate, four to five lines long, lunulate-ovoid, becoming two- 

 valved ; the endocarp adnate. Seed solitary, filling the cell. 



Zanthoxylum (Blackburnia) dipetalum sp. nov. 



Inerme, glabrum ; foliis alternis 3-9-foliolatis ; foliolis coriaceis ob- 

 longis vel ovatis integerrimis punctatis ; paniculis florum steriUum com- 

 positis ; petalis 2 ovalibus crasslsslmis asstlvatlone valvatis calyce 

 4-dentato quadruplo-longlore ; antheris oblongis : — flores fertiles 

 fructusque ignoti. 



Oahu, on the mountains behind Honolulu, (H. Mann and Dr. Wm. 

 Hlllebrand.) 



A tree about thirty feet high, entirely glabrous. Dr. Hillebrand's 

 specimens furnish immature sterile flowers. Leaves alternate, 3-9- 

 foliolate, petioled. Leaflets two to four inches long by seven to 

 twenty lines wide, oblong or oblong-ovate, obtuse, coriaceous, punctate, 

 pinnately veined, entire, equal at the base, and Dr. Hillebrand's speci- 

 men with one or two small (three to nine lines long) foliar bodies 

 arising from just below the lower leaflets, which, were it not for their 

 anomalous position, might be likened to large stipules. Panicles axil- 

 lary or terminal, cymosely many-flowered, with a very thick and 

 nodose peduncle and axis. Calyx small, less than a line long, four- 

 lobed. Petals only two, oval, valvate in sestivation and remarkably 

 thick, in the bud three or four lines long, probably caducous. Stamens 

 four ; filaments short, subulate ; anthers oblong. 



