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22 e 23 - Rodriguésia - Jardim Botânico do Rio de Janeiro

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— 108 —<br />

Sampaiella J. C. Gom., n. gen.<br />

Calyx campanulatus, minute quinque<strong>de</strong>nticulatus <strong>de</strong>nseque<br />

rufotomentosus. Corolla praefloratione imbricata,<br />

lobis subaequalibus, hypocraterimorpha. Stamina quattuor<br />

pro familia typica; pollinis granula plus minusve elliptica,<br />

visibiliter alveolata, cingulis tribus sat evi<strong>de</strong>ntibus praedita,<br />

poris tribus in cingulorum médium instructa. Staminodium<br />

filiforme, parvum. Ovarium submuricato-lepi<strong>do</strong>tum, 12-14<br />

ovulis exhibens. Discus crassus. Fructus ignotus.<br />

Frutex ope cirrhorum simplicium scan<strong>de</strong>ns. Folia ternata<br />

vel ob cirrhum terminalem conjugata, petiolata; foliola<br />

ovalia aut late ovalia, basi val<strong>de</strong> inaequalia, cordata.<br />

Panicula terminalis tota longiuscule rufo-tomentosa, longe<br />

pedunculata; bracteis bracteolisque exiguis. Folia stipulas<br />

simulantia nulla.<br />

Genus ad Arrabidaeam habitu morphologiaque accedit;<br />

iam indumento val<strong>de</strong> peculiari insigne; a Cremasto (cf. Fl.<br />

Brás., pág. 50 in obs.) apparenter tantum proximum. Ab<br />

omnibus pollinis granulis alveolatis cingulis (sive fissuris<br />

auct.) tribus praeditis, similis mei est, satis bene distat.<br />

Nomen generis A. J. Sampaio, botanicum Brasiliensem<br />

magnum, dicatum.<br />

TYPUS: Sampaiella trichoclada (DC) J. C. Gom.<br />

1 — S. trichoclada (DC) J. C. Gom.,n. comb.<br />

Syn.: Arrabidaea trichoclada (DC.) Bur. et Sch.: Fl.<br />

Brás., vol. VIII, p. II, pg. 49 Prod. vol. IX, pg. 158 (sub.<br />

Bignonia).<br />

Folia usque ad 14cm. longa, 8,5cm. lata; petiolo 8cm.<br />

longo, petiolulo 3cm. longo. Corolla extus <strong>de</strong>nse tomentosa,<br />

intus praeter faucem glabra, usque ad 3cm. longa. Pollinis<br />

granula 67-72 micra longa. Cetera ut in Fl. Brás. <strong>de</strong>scriptione.<br />

Habitat in Chapada Bom Jesus (Piaui), a Luetzelburg<br />

lecta, n. 1.720. Herb. J. Bot. R. Jan. n. 956 (Typus).

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