Byttneriacece.] 



SANDWICH ISLANDS. 



79 



Ord. IV. MALVACEAE. Juss. 

 1. Malva rotundifolia. Linn. — De Cand. Prodr. v. l.p. 432. 



1. Hibiscus Youngianus ; caule fruticoso velutino aculeato setifero, foliis cordatis subtri- 

 lobis dentato-serratis, involucelli foliolis 10 teretibus apice divaricato-bifidis. — Gaud, in 

 Freyc. Voy.p. 91 ? (absque descriptione.) 



Caulis fruticosus, dense velutinus, setis conspersus, aculeatus (secundum Collie, at aculei a nobis non visi.) 

 Hamuli velutini setiferi. Petioli velutini duas pollices longi. Folia cordata, 3-5-lobata, angulis obtusis, lobo 

 medio productiore, irregulariter dentato-serrata, petiolum longitudine aequantia, subtus velutina, supra scabra. 

 Pedunculi solitarii, axillares, velutini, setiferi, petiolum vix superantes. Involucelli foliola 10 teretia hispido- 

 setosa apice biloba, lobis parvis patentibus. Sepala 5 ad medium coalita, dense setifera, dorso margineque 

 nervosa, reticulatim venosa. Petala " rosea" ( Collie.) Carpella polysperma, truncata, dorso pilis albidis 

 rigidis appressis dense tecta. Semina subreniformia, grisea, glaberrima. 



We have no authority for supposing this to be the H. Youngianus of Gaudichaud, farther than that he 

 states it to be a new species of the section Furcaria of De Candolle, to which ours certainly belongs, and is 

 a species closely allied to H. bifurcatus, Cav. It was found in Oahu. 



2. H. Boryanus? De Cand. Prodr. v. l.p. 446. 



From the imperfect state of the specimen before us, we cannot affirm it positively to be the plant of De 

 Candolle. The leaves are ovate, slightly coriaceous, 3-nerved, perfectly smooth, and quite entire. The pe- 

 duncles are short, scarcely an inch long, and very stout. The calyx 5-toothed, and split up on one side by 

 the swelling of the fruit, as in De Candolle's section Manihot. The carpels are polyspermous, and the seeds 

 covered with fulvous hairs. Perhaps, then, this is a new species, and more closely allied to H. rhombifolius, 

 Cav. ; but we possess a plant in flower from Owhyhee, collected by Mr. Macrae in Byron's Bay, which seems 

 to be the same as ours : this certainly belongs to the section Cremontia by the nature of its corolla, and 

 has toothed leaves, as in H. Boryanus: the flowers are, however, red, not white, and the leaves are 

 3-nerved, as in the specimen from Oahu. 



1. Gossypium indicum. Lam. — De Cand. Prodr. v. 1. p. 456. Cav. Diss. 3. t. 169. Humph. 

 Amb. v. 4. t. 12. 



1. Sida uhnifolia ; foliis ovato-cordatis acutis serratis glabriusculis, pedicellis solitariis 

 1-floris petiolo subaequalibus, carpellis 5 longe birostratis. — Cav. Diss. I. p. 15. t. 2. f. 4 ? 

 De Cand. Prodr. v. l.p. 464? 



Found in Oahu, where it was also met with by Mr. Macrae. It differs principally from 5". ulmifolia of 

 Cavanilles, by the leaves being not acuminated and scarcely at all pubescent ; but we do not consider it a 

 distinct species. 



2. S. rotundifolia. Cav. Diss. 1. p. 20. t. 3. / 6. ct t. 194. / 2. De Cand. Prodr. v. 1. p. 

 464. 



There are three states of this species in the Collection ; one with the pedicels solitary, and this appears 

 to be the type of the species ; another with the pedicels in pairs, and also densely clustered or umbellate at 

 the tops of the short young branches, but differing- from the former in no other respect ; the third has the 

 leaves much smaller and rounder than either of the others, and the peduncle solitary. We might have been 

 disposed to have separated these into as many distinct species, but Mr. Collie, whose notes are before us, calls 

 them all by the manuscript name of *S'. incequalis, stating that their vernacular appellation is Irima; while, 

 agaiu Gaudichaud remarks that Rima, Irima, and Ouirima, are all applicable to <S'. rotundifolia. 



Ord. V. BYTTNERIACEiE. Br. 

 1. Waltheria Americana. Linn. — De Cand. Prodr. v. 1. p. 492. — W. indica. Linn. — 



