Manihot Manihotoides (Euphorbiaceae) - CNCFlora

172 Flora Neotropica
10191 (LIL, US) Department Burroyaco, Cerro Del Campo, 23 Feb 1930; Venturi 1690 (BAB, LIL,
US) Durazuito, Department Capital; Venturi 1690B (US) El Cadillal, Department Tafi, 29 Dec 1923;
Venturi 2865 (GH, LIL) El Durazuito, Department Capital, 16 Feb 1924.
63. Manihot warmingii Mueller von Argau in Martius, Fl. Bras. 11(2): 481. 1874; Pax in
Engler, Pflanzenreich IV. 147(Heft 44): 43. 1910.
Plant growth habit unknown. Stems non vidi. Leaf arrangement on the stem
unknown; stipules filiform, ca 0.5 cm long, pubescent; petioles ca 4.0 cm long, terete,
pubescent, petiole attachment to lamina basal, nonpeltate; lamina membranaceous,
abaxial surface wax pattern smooth; venation camptodromous, veins tomentose; lamina
palmately 5 lobed; median lobes obovate, deeply pandurate, ca 9.0 cm long, ca 3.5 cm
wide, apex acuminate, base of lobes ca 1.0 cm wide; lowest lobes ca half as long as
median lobes. Inflorescence structure unknown (only a fragment of the inflorescence
seen); peduncles and pedicels tomentose; bracteoles foliaceous, ca 0.8 cm long, ca 0.5 cm
wide, pubescent, margins entire; bractlets foliaceous. Pistillate flowers non vidi. Staminate
buds ovoid-ellipsoid, flowers small, tepal ca 0.7 cm long, pubescent, cleft 1/3 way down
into 5 lobes; stamens 10, in 2 whorls of 5 each. Capsules and seeds non vidi.
TYPE. Warming s n (1507 ?): Brasil, Minas Gerais: near Lagoa Santa, 19 Dec 1865
(syntypes, photo at F, G).
DISTRIBUTION. (Fig 77D). Brasil, Minas Gerais.
Manibot warmingii is represented either by photographic material or by fragments,
and its status as a species is questionable. It may be a variant or synonym of M. anomala
subsp pubescens.
10. Manihot sect Variifoliae Rogers & Appan, sect nov
Manihot sect Heteropbyllae Pax subsect Variifoliae Pax in Engler, Pflanzenreich IV. 147(Heft
44): 84. 1910 pro parte.
Manihot sect Glaziovianae Pax in Engler, Pflanzenreich IV. 147(Heft 44): 89. 1910 pro parte.
Plantae caulinae, lignosae, infernae ad mediae frutices. Folia petiolatae, penitae.
Inflorescentia monoecia subspicata racema.
Plants caulescent; low to medium shrubs; leaves widely spaced on stem; petiolate,
petiole attachment peltate; lamina membranaceous, deeply lobed, lobes variously shaped,
but not linear. Inflorescence monoecious, a cluster of subspicate racemes arising from a
common base; bracts and bracteoles setaceous, margins entire.
TYPE. Manihot variifolia Pax et K. Hoffmann.
DISTRIBUTION. (Fig 78).
Key to the Species of Sect Variifoliae
1. Leaf venation camptodromous; median lobes more than 5.0 cm wide, obovate. 64. M. mirabilis
1. Leaf venation craspedodromous; median lobes less than 2.0 cm wide, hastate, with 2
well-developed secondary lobes at base. 65. M. variifolia
64. Manihot mirabilis Pax in Engler, Pflanzenreich IV. 147(Heft 44): 91. 1910.
Shrubs. Young stems pubescent, obtuse-angled in cross section; mature stems
sparsely pubescent or glabrous. Leaves alternate; stipules setaceous, pubescent, caducous;
petioles ca 9.0 cm long, obtuse-angled, pubescent, petiole attachment to lamina peltate,
width between basal edge of lamina and petiole-midrib junction ca 1.0 cm; lamina
herbaceous to slightly coriaceous, abaxial surface wax pattern smooth; venation
camptodromous, midribs stout, ca 0.2 cm in diam near base, primary, secondary, and
tertiary veins prominent and bright yellowish, glabrous; lamina palmately 3 lobed,
frequently nonlobed; median lobes obovate to almost rotundate, occasionally shallowly