Chamaecrista ramosa var. lucida

  • Title

    Chamaecrista ramosa var. lucida

  • Author(s)

    Howard S. Irwin, Rupert C. Barneby

  • Scientific Name

    Chamaecrista ramosa var. lucida (Benth.) H.S.Irwin & Barneby

  • Description

    2e. Chamaecrista ramosa (Vogel) var. lucida (Bentham) Irwin & Barneby, comb.nov. C. curvifolia var. (ß) lucida Bentham in Martius, Fl. Brasil. 15(2): 160. 1870.—‘. . . in campis pascuis montanis provinciarum Minas Geraes: Martius; Goyaz: Gardner no. 4120., Burchell; Piauhy: Gardner no. 2550 . . Lectoholotypus, Gardner 4120, collected V.1840 (fl, fr) between Santos Domingos and Possé in e.-centr. Goiás, K! isotypi, BM, BR, NY (hb. Meisner.), S! paratypi, Martius s.n., M (cited by Irwin, 1964, p. 72, as holotypus, but seen only in photograph); Burchell 8256, from between Natividade and Chapada, K!—Gardner 2550 = var. mollissima.

    Cassia uniflora var. utiarityi Hoehne, Comm. Linh. Telegr. Estrat. de Matto Grosso ao Amazonas 45(5) Bot. 8: 47, estampa 144 (lapsu sub fma. utiarityi). 1919.—"[Hoehne] 2075 . . . Colhida [VI. 1909, fl] no Utiarity, margens do Rio Papagayo [Mato Grosso, near 58°20'W, 13°S]."—Holotypus not seen, but the figure and protologue decisive.Cassia curvifolia var. lucida sensu Irwin, 1964, p. 72, exclus. pl. Tamberlik., fig. 344 (map).

    Erect or diffuse, stiffly branched subshrubs at anthesis 3.5-10 dm, sometimes when young wandlike and few-branched distally, the stems commonly pilosulous, the stipules and lfts commonly glabrous ciliolate, less often pilosulous facially, exceptionally quite glabrous; stipules ovate to lance-acuminate, the larger ones 5-13 x 2.5-6 mm, mostly as long or slightly longer than the internode; lf-stalks 1.6-3.4(-4)mm, the petiole l-2.4(-3), the rachis 0.6-1.1 mm; gland subsessile or shortly stipitate, 0.3-0.7 mm diam, in profile shortly peg- or drum-shaped, 0.30.8 mm tall, 0.3 mm shorter to 0.5 mm longer than diam of head; lfts obliquely semi-ovate to falcately lance-elliptic, all acute, the proximal pair ± half as long as the distal, these of larger lvs up to 8-17 x 2-4 mm, the blades ± 3-5 times longer than wide, the midrib of all ± incurved, pedicels 2-10 mm; long sepal 812 mm; longer petals 9-13 mm; pod 19-37 x 5-7 mm, pilosulous; ovules 8-16.

    Cerrado, commonly in sandy places, 300-950 m, scattered around the n. periphery of the Brazilian Planalto on the headwaters of Rios Tapajós and Tocantins, from n.-w. Mato Grosso (Utiariti, in Chapada dos Parecis) to s.-w. Pará (Sa. do Cachimbo) and n. and e.-centr. Goiás (Araguaina s. to Possé).—Fl. I-VIII, perhaps throughout the year.

    Maintained here, as by Irwin in 1964, with some misgiving, and perhaps no more than a luxuriant, relatively large-leaved state of var. mollissima, next following, although apparently for the most part allopatric. The collection of Tamberlik, mentioned as perhaps distinct by Irwin (1964), is described above as Ch. desvauxii var. chapadicola. The var. utiarityi, referred by Irwin (1964) to var. ramosa, otherwise unknown from Mato Grosso, appears from the phototype to have the obliquely lanceolate leaflets and short pedicels of var. lucida. The Martius collection from Serro Frio cited in the protologue represents a form of Ch. ramosa var. parvifoliola.