OF ARTS AND SCIENCES : OCTOBER 14, 1862. 55 



paullo brevioribus. — Subvar. gracilis, longipes ; petiolo gracili 1 - 

 2>|^-pollicari lamina lanceolato-oblonga 3-5-nervi sequali ; scapo gra- 

 cili; spica laxiflora ; capsula oblonga calycem subduplo superante. — 

 Hawaii, on Mouna Kea and Mouna Loa to the elevation of 6,000 to 

 8,000 feet, and in the environs of the Great Crater. Subvar. gracilis, 

 Hawaii, Remy, no. 429. 



Var. y. Kavaiensis : depauperata ; foliis oblongis cum petiolo lato 

 brevissimo 14 -2-poUicaribus ; spica laxiflora cum scapo gracillimo 

 semipedali : cajt. var. /3. — Kauai, on the tabular summit. Aspect rather 

 of P. eriopoda. 



Barneoud's P. Brongyiiartii (briefly described fi-om a single speci- 

 men of Gaudichaud's collection, and not identified by Decaisne), on ac- 

 count of the narrow and very acute lobes of the corolla and the acute 

 bracts, would appear to be rather a depauperate state of P. princeps 

 than any other. Still, from its being ranked with P. macrocarpa and 

 with P. viresce)is (which is P. eriopoda, Torr.*), and the leaves de- 

 scribed as fleshy and obtuse, it may prove to be one of the depau- 

 perate forms of the polymorphous species here described. 



2. Additional Note on the Genus Rhytidandra. Bi/ Asa 

 Gray. 



This genus I established on a flowering specimen in the Feejean 

 collection of the South Pacific Exploring Expedition ; and afterwards 

 (in the Memoirs of the Academy, 5, p. 334, in 1854) I indicated its 

 close relationship to Marlea. To the characters assigned, which should 

 distinguish it from the latter, namely, the camerate anther-cells, the 

 strictly one-celled ovary, and the bifid style with slender lobes, may be 

 added the thin and deplanate epigynous disk. That of Marlea forms 

 a large and globular stylopodium, well described by Endlicher, and 

 figured by Clarke, and so conspicuous that it may have misled Ben- 

 tham ; or else there is some slip in his character, " ovary adhering to 

 above the middle," in the Flora Hongkongensis. 



But the object of this note is to state that specimens of Rhytidandra 

 Vitiensis in fruit have now been detected among some undetermined 



* Plantago eriopoda, Torr., includes P. attenuata, James in Long's Exped. ; P. 

 lanceolata y & fi (pro parte), Hook. Fl. Bor.-Am.; P.virescens, Barneoud; P. Rich- 

 arclsonii and P. ohlongifolia, Decaisne ; P. salsuginosa, Nutl. ined. 



