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6. SIDA, Linn. (excl. sp.)

Calyx sæpius angulatus, nudus, rarove bracteolis 1–2 deciduis involucellatus. Tubus stamineus simplex. Stigmata terminalia capitellata. Ovulum in loculis solitarium, resupinato-suspensum! Capsula 5–15-cocca; carpella rectiuscula indehiscentia vel sæpius apice bivalvia, ab axi centrali tarde secedentia. Semen subtrigonum, umbilico sursum spectante. Embryo conduplicatus, curvature infera, radicula (ventrali) cotyledonibusque superis! — Herbæ aut suffrutices (plerisque tropicis v. subtropicis); foliis sæpius indivis.

Sida, Kunth in H.B.K. Nov. Gen. (excl. sp.); Adr. Juss. in St. Hil. Fl. Bras.

Malvinda, Medik, Malv. 23

§1. PSEUDO-MALVASTRUM. Involucellis e bracteolis 1–3 setaceis parvis, deciduum. Carpella omnino mutica. Stellato-incano, floribus flavis croceisve.

S. HEDERACEA, Torr.! ined.=Malva hederacea, Dougl. in Hook. Fl. Bor.-Am. 1. p. 107. M. Californica, Presl! Rel. Hænk. 2. p. 121. M. plicata, Nutt.! in Torr. & Gray, l.c. M. obliqua, Nutt.! Mss. Sida obliqua, Torr. & Gray! l.c. — Southern Oregon, Douglas, Nuttall. California, Hænke, Coulter, Fremont.

S. sulphurea,=Malva sulphurea, Gillies! in Hook. Bot. Misc. 3. p. 149, from Mendoza, is a nearly related species; and some others from the same region usually referred to Malva probably below here.

§2. MALVINDA, Medik. Calyx omnino nudusm 5-angulatus, 5-fidus. Carpella pl. m. rostrata, 2–3-cuspidata vel aristata. Flores plerumque flavi.

S. spinosa, Linn. et cæteris div. * & ** Torr. & Gray, Fl. l.c., etc.

§3. PSEUDO-NAPÆA. Calyx omnino nudus, teres, 5-dentatus. Flores umbellati-corymbosi, albi. Folia palmatifida.

S. NAPÆA, Cav.=Napæa hermaphrodita, Linn. (Vide p. 21.)

S. Hulseana, Torr. & Gray, l.c. (Abutilon Hulseanum, Torr. ined.) is probably Abutilon confertiflorum, A. Rich.

S. crispa, Linn. (which grows on Key West and in Texas) has 3–4-ovulate carpels, and is therefore an Abutilon, notwithstanding its close resemblance to Bastardia, to which Adr. Jussieu referred it.

A revision of the North American species of Sida, as thus restricted (of which there are several new of undetermined species from Texas, &c.), will be attempted on another occasion.

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