ARALIACE.E. >?29 



having four times as many stamens as petals (whence the name, com- 

 pounded of rerpaTtkdqcoq, four-fold, and Zvdpa, used for stamens), excepting 

 the succeeding genus, in which they are indefinitely numerous. 



Plate 94. — Tetraplasandra Hawaiensis : portion of inflorescence 

 and foliage, of the natural size. Fig. 1. A flower, with the cohering 

 petals detached. 2. The same, with the stamens also fallen away. 

 3. A petal, inside view. 4, 5, Stamens. 6. Vertical section of an 

 ovary. 7. Transverse section of an ovary. 8. A drupe, of the 

 natural size. 9. Vertical section of a drupe. 10. A pyrena, trans- 

 versely divided. — The details (except Fig. 8) variously magnified. 



10. PLEEANDEA, Nov. Gen. 



Floi-es polygamo-monoici vel dioici? Masc. — Calyx tubo turbinate cum 

 ovario connato; Umbo brevissimo post anihesin repando-undidato. 

 Petala 4 ? epigyna, oblonga, cestivatione valvata, mox decidua. Sta- 

 mina indefinita, epigyna, pluriserialia : filamenta filiformia : antJierce 

 oblongce. Ovarium li-15-locidare ; ovula in loculiis solitaria, parva, 

 suspensa, scepius abortiva vel nulla. Stigma truncatum, obsolete 

 multiradiatum, stylopodio conico impositum. Fcem. ignoti. — Arbor 

 20-pedalis, macrophylla ; foliis digitatis 9-foliolatis; umbellis com- 

 positis. 



1. Plerandra Pickeringii, Sp. Nov. (Tab. 95.) 

 Hab. Ovolau, Feejee Islands ; at the elevation of 1,500 feet. 



A small tree, 15 or 20 feet high, according to Dr. Pickering's notes, 

 "with very large leaves as well as compound umbels," unarmed? 

 glabrous. Leaves digitate, the stout and fistulous petioles 2 feet or 

 more in length. Leaflets 9, oblong or oblong-obovate, entire, acute 

 at the base, membranaceous, pinnately veined, a foot and a half long 

 in the specimen, probably often much larger, the partial footstalks 2 

 or 3 inches long. Rays of the compound umbel large and stout : 

 the ultimate umbels many-rayed, the rays an inch and a hall long. 



183 



