844 LXXVI. BEGONIACEJE. 
Fl. 9: Calycis tubus hemisphzrieus, exalatus, ovario adnatus; limbi lobi 5, late ovati, 
acuti. Petala5, iis fl. & similia.  Glandule minutes, stipitatee, perigyng, numerose. Ova- 
rium apice libero hians, imperfecte 5-loculare, placentis 5 parietalibus in loculum projectis 
2-Jamellatis, lamellis reflexis; styli 5, persistentes, lobis calycis oppositi, 2-furcati, cruribus 
spiraliter stigmatosis ; ovula lamellis placentze undique inserte. Capsula membranacea, 
hemisphzrica, exalata, apice foramine lato inter stylos dehiscente. Semina minuta, ob- 
longo-ovoidea, testa areolata, albumine 0; embryo oblongus, cotyledonibus brevissimis.— 
Herba suceulenta, ramosa, pilosiuscula. Folia petiolata, oblique cordato-rotundata, irre 
gulariter 5-9-loba, lobis argute serratis. Pedunculi 2-sexuales, 2-bracteati, -Bocihowis 
2-bracteolatis, 
Species 1, ins. Sandvicensium incola. 
Onpo LXXVII. DATISCEZE. 
Endl. Gen. 897 ; Lindl. Veg. Kingd. 316. 
Flores dioici, regulares, rarius hermaphroditi v. polygami. Fl. 9: Calycis tubus bre- 
vissimus v. hemisphzricus ; lobi 3-9, breves, squales v. inzequales.  Pefala 0 v. 8, parva. 
Stamina 4-25, calycis lobis opposita ; filamenta brevia v. elongata. 4nthere 2-loculares, 
dorso v. basi inserts, loculis extrorsum v. lateraliter dehiscentibus. Ovarii rudimentum 
O v. parvum. Fl. 9 et hermaphroditi. Calycis tubus ovario adnatus ; lobi 3-8, breves. 
Stamina dum adsint iis marium consimilia v. ad staminodia reducta. Ovarium 1-loculare, 
apice apertum v. clausum ; placente parietales, cum lobis calycinis alternate. — S£yli tot 
quot placente, et cum iis alternati, simplices v. 2-partiti, intus stigmatosi, v. stigmatibus 
capitatis terminati. Ovevw/a perplurima, 2-oo-seriata, anatropa, adscendentia v. subhori- 
zontalia. Capsula membranacea v. coriacea, intra stylos dehiscens, co-sperma. Semina 
numerosissima, minuta; testa striata et impresso-punctata; umbilicus strophiolatus ; " 
albumen parcum. | nbryo in axi albuminis cylindrieus ; radicula elongata, hilo proxima. 
Herbe v. arbores, glabre pubescentes v. sublepidotz. Folia alterna, simplicia v. pin- 
nata.  Stipule O. Flores parvi v. mediocres, in spicas unisexuales v. racemos fascicu- 
losve axillares dispositi, bracteati. 
Species 4, quarum 3 Europte austro-orientalis, Asie occidentalis et centralis, Indis órientalis, 
Zeylanis et Archipelagi Indici incole, tertia in Mexico et California reperta. 
Ordo parvus, Begoniaceis structura ovarii et seminis, floribus unisexualibus aliisque notis proxime : 
affinis; sed insigniter discrepans habitu, lobis calycis persistentibus, staminibus calyci insertis, 
antherisque filamento non adnatis, 
CONSPECTUS GENERUM. 
1. DamiSCA. Petala O0. Antherm elongate. Filamenta brevia. Styli filiformes, » partiti. 
Herbze foliis 3-sectis v. imparipinnatis.—.4sia occid., Himalaya, Mezico, California. . 
2. TETRAMELES. Petala 0. Anthere breves. Filamenta elongata, Styli 4, breves, stig- 
matibus obtusis. Arbor, foliis longe petiolatis late cordato- v. ovato-rotundatis.—.4sia trop. 
3. OcTOMELES. Petala in fl. d 8. Anthers recurve. Filamenta elongata. Styli B, stig- 
matibus capitatis. Arbor, foliis longe petiolatis cordato-rotundatis.— 4 rchip. Ind. 
1l. Datisca, Linn. Gen. ». 1132.— Flores dioiei, rarius (in T*iceraste) hermaphroditi. 
Fl. 9: Calycis tubus brevissimus; lobi 4-9, insequales. Stamina 9-25, pleraque lobis 
calycis opposita, filamentis brevibus v. elongatis; anthersm lineari-oblongs, loculis latera- 
liter dehiscentibus. Ovarii rudimentum 0. Fl. 9 et $: Calycis tubus ovoideus, ob- 
seure 3-gonus, 3-dentatus. Stamina dum adsint ut in fl. d. Ovarium apice 3-gonum, 3- 
placentiferum ; styli 3, filiformes, 2-fidi v. 2-partiti, laciniis intus papillosis. Capsula 
anguste oblonga, 3-5-costata, coriacea, apice inter stylos hians.— Herbs glabrz, habitu 
Canaabis. Folia 3-secta v. imparipinnata, summa integra, foliolis lanceolatis grosse ——— 
serratis. Flores d axillares, fasciculati, brevissime pedicellati. FL 9 in ramulos axil- 
lares elongatos longe racemosi. 
