Acta Botanica 28. (1982)

1982 / 1-2. szám - BORHIDI ATTILA: Studies in Rondeletieae (Rubiaceae), III. The genera Rogiera and Arachnothryx

ROGIERA AND ARACHNOTHRYX 67 ora (Fig. 1). Capsula globose, thin, loculicidally dehiscent, 2-valvate. Seed angulate, exappendiculate, not winged. Species typica: Rogier a amoena Planch. Rogiera amoena Planch. Fl. Serres 5: 442 (1849) Syn. : Rogiera menechma Planch. Fl. Serres 5: 442 (1849). — Rondeletia versicolor J. Smith Bot. Mag. 4579 (1851). — Rogiera versicolor Lindl. et Paxt. Fl. Gard. 2: 69 (1851). — Rondeletia latifolia Oerst. Yidensk. Meddel. 1852: 43. — Rogiera latifolia Decne. Rev. Hortic. IV. 2: 121 (1853). Rondeletia amoena Hemsley Diagn. PI. Nov. 26 (1879). ? Rondeletia schumanniana K. Krause Bot. Jahrb. 40: 315 (1908). Central America Rogiera cordata (Benth.) Planch. Fl. Serres 5: 4426 (1849) Rondeletia cordata Benth. PI. Hartw. 85 (1841). — Guatemala Rogiera ehrenbergii (K. Schum.) Borhidi comb, nova Rondeletia ehrenbergii K. Schum. N. Amer. Fl. 32: 50 (1918). — Guatemala Rogiera gratissima Linden in Planch Fl. Serres 15: 133 (1864) Rogiera elegantissima Regel Gartenfl. PI. 490 (1865). — Rondeletia gratissima Hemsl. Diagn. PI. Nov. 25 (1879). Mexico Rogiera intermedia (Hemsl.) Borhidi comb, nova Rondeletia intermedia Hemsl. Diagn. PI. Nov. 26 (1879). Mexico Rogiera langlassei (Standi.) Borhidi comb, nova Rondeletia langlassei Standley N. Amer. FI. 32: 53 (1918). — Mexico Rogiera ligustroides (Hemsl.) Borhidi comb, nova Rondeletia ligustroides Hemsl. Diagn. PI. Nov. 26 (1879). — Mexico Rogiera pittieri (Schum, et Krause) Borhidi comb, nova Rondeletia pittieri K. Schum, et Krause Bot. Jahrb. 40: 316 (1908). — Costa Rica Rogiera roezli Planch. Fl. Serres 5:442 (1849) Rogiera elegáns Planch. Fl. Serres 5:442 (1849) Rogiera stenosiphon (Hemsl.) Borhidi comb, nova Rondeletia stenosiphon Hems. Diagn. PI. Nov. 26 (1879). — Mexico, Guatemala Rogiera strigosa (Benth.) Borhidi comb, nova Bouvardia strigosa Benth. PI. Hartw. 75 (1841). — Rondeletia strigosa Hemsl. Diagn. PI. Nov. 27 (1879). Guatemala, Salvador Rogiera suffrutescens (Brand.) Borhidi comb, nova Rondeletia suffrutescens Brand. Univ. Calif. Publ. Bot. 6: 70 (1914). Mexico Arachnothryx Planchon Fl. Serres 5: 442 (1849) [Syn.: Rondeletia sect. Arachnothryx Benth. et Hooker 1873: .... — Rondeletia sect. Leucophyllae Standi. N. Amer. FI. 32: 53 (1918). - Rondeletia sect. Laniflorae Standi. N. Amer. FI. 32: 55 (1918). — Rondeletia sect. Calycosae Standi. N. Amer. FI. 32: 59 (1918).) Shrubs or small trees with various, usually erect stipules. Leaves opposite, large, usually tomentose or pubescent. Inflorescence terminal, cymose-race­­mose, cymose-corymbose, paniculate or elongate thyrsiform, rarely capitate, many-flowered. Flowers 4-parted. Calyx lobes short or elongate, narrow or broad, corolla large or small, tube arachnoid tomentose or pubescent outside, puberulous, hirsute or glabrescent within, the throat naked, slightly widened without faucial ring, lamelles or denticles. Stamens 4, subsessile, filaments Acta Botanica Academiae Scientiarum Hungaricae 28, 1982

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