88 



SANDWICH ISLANDS. 



[Lobeliacece. 



foliata, floribus fasciculatis. Gaud iu Freyc. Voy. p. 469. t. 84. — It must be observed, however, that his speci- 

 mens seem to have been even less advanced tban ours, and this circumstance may also account for the slight 

 difference in the generic character, which we shall now give as more suited to the specimen before us : — 

 Duhautia. Gaud.; Involucrum campanulatum suboctophyllum, foliolis liberis margine sibi mutuo incum- 

 bentibus. Flores 8-10, tubulosi, hermaphroditi. Filamenta linearia, apice vix iucrassata. Stigmata dila- 

 tata acuta ciliata. Achenium oblougum. Pappus paleaceus dorso et margine setis patentibus rigidis plum- 

 osus. — Stiff rut ices, rands apice fuliosis, inferne nudis, cicatriso-anuulatis. Folia opposita, sessilia, basi sub- 

 connata, rigida, parallele venom. Paniculce terminates ; ramis hispide setosis. — This genus is most allied to 

 Tridax and Craspedia. It has also some affinity to the new genus Railliarda, of which we possess three 

 new species from Mr. Menzies and Mr. Macrae, all from the Sandwich Islands. 



Ord. XXIV. LOBELIACE.E. Juss. 



1. Lobelia (Delissea) acuminata; ramosa, foliis oblongis duplicato-denticulatis utrinque 

 hirtellis, calycibus 5-dentatis. Gaud, in Freyc. Voy. p. 457. t. 76. 



As the characters of Delissea and the two following genera, whether they be viewed as distinct genera, 

 or only as sections of Lobelia, are only to be found iu the above-quoted work, we shall transcribe them here. — 

 Delissea. Gaud.; Calyx ovario arete adnatus, limbus liber 5-dentatus persistens. Corolla tubulosa, 

 arcuata, decidua, tubo cylindraceo indiviso, Umbo 5-partito subbilabiato. Stamina 5 ; filamenta in tubum 

 liberum connata; authera? cohoerentes, 2 inferiores barbata 1 . Stigma bilobum, pihs cinctum. Capsula 

 baccata, calyce persistente corouata, bilocularis non dehiscens. Semina creberriraa. 



2. Lobelia (Cyanea) Grimeseiana. — Gaud, in Freyc. Voy. p. 458. t. 75. 



The character of this sub-genus is: — Cyanea. Gaud.; Calyx ovario adnatus 10-sulcatus; limbus foliaceus 

 longior 5-partitus, laciniis oblongis margine rellexis et undulato-crispis. Corolla tubuloso-eylindracea, arcu- 

 ata, limbo 5-partito subbilabiato. Stamina 5 : tubus stamineus liber. Antherse connata 3 , barbate. Capsula 

 baccata, sulcato-decagona, indehiscens, bilocularis, calyce persistente coronata. Semina creberrima. 



3. Lobelia (Rollandia) lanceolata ; ramosa, foliis magnis oblongo-lanceolatis duplicato- 

 dentatis subtus hirtellis, calycibus 5-partitis glabris, laciniis ovatis obtusis, racemis depauper- 

 atis, staminibus epipetalis. Gaud, in Freyc. Voy. p. 458. t. 74. (R. montana.) 



The specimen in the Collection has much larger leaves than that figured by Gaudichaud, to which another 

 in our herbarium, from Mr. Macrae, exactly corresponds; but to the latter the term folia magna can 

 scarcely be applied, while those before us well deserve the name, being from a foot to a foot and a half long. 

 Gaudichaud thus characterises Rollandia : — Calyx ovario arete adnatus; limbus liberus 5-partitus, laciniis 

 abbreviatis obtusis. Corolla tubulosa, lateribus compressa arcuata, tubo indiviso, limbo 5-partito subbilabiato. 

 Stamina 5 ; tubus stamineus inferne parti superiori corolla? adnatus. Anthera? coharentes barbate. Stigma 

 bilobum pilis cinctum. Capsula baccata, indehiscens, bilocularis, calyce persistente coronata. Semina creber- 

 rima. — The genus Clerntontia, Gaud., was not observed during the expedition under Capt. Beechey : we, how- 

 ever, possess C. ob/ongifo/ia and grandifiora, Gaud., from Mr. Macrae. This differs from the former genera 

 by the calyx being coloured, tubular, curved, and as long as the tube of the corolla. 



4. Lobelia macrostachys ; glaberrima, caule elato stricto, foliis lineari-lanceolatis utrinque 

 attenuatis subcrenatis, racemo siniplici terminali longissimo, pedicellis simplicibus secundis 

 horizontalibus apice sursum vergentibus, bractea linear! pedicello breviore, calycis tubo 

 hemispbajrico, limbi laciniis obtusis, corolla pedicello duplo longiore. 



Calyx ovario arete adnatus; limbus liber, o-partitus ; laciniis oblongis, obtusis, tubum arjiuintibus. 

 Corolla tubulosa, duas ad tres uncias longa, arcuata ; tubus cylindraceus 5-fidus, hinc fissus. Stamina 5 ; 



