Manihot Manihotoides (Euphorbiaceae) - CNCFlora

Systematic Position of the Genus 215
TYPE. Pohl 702 (and on some specimens also 767 & 1713) Brasil, Minas Gerais: ad
Serra d'Urubu, ad Rio Paranahyba, S. Pedro d'Alcantara, Nossa Senhora, Paracatu
(syntypes, F-2, W-2).
DISTRIBUTION. (Fig 102A) Brasil, states of Goias and Minas Gerais. BRASIL. Goias:
Glaziou 22136 (US) Entre Cocal et Lambary, 26 Feb 1895. Minas Gerais: Barreto 2617 (F) Lagoa
Santa, Municipality Santa Luzia, 25 Mar 1933; Barreto 2618 (F) Lagoa Santa, Santa Luzia, 20 Nov
1933; Burret & Brade 15967 (PUL, RB) Lagoa Santa, Dec 1937; Claussen 758 (NY-2, S), 1838;
Claussen s n (OXF) Lagoa Santa, 1840; Claussen s n (F, W) Lagoa Santa. 1843. Glaziou 17753 (F, P)
Serra do Senheiro, 20 Jan 1889; Pohl Icon Tab. 43 (W); Rogers 363 (NY-3) Lagoa Santa, 17 Feb,
1961.
LOCAL NAMES. Mandiocucu do campo (Barreto 2617) manioc (Claussen s n)
86b. Manihot tomentosa Pohl emend Rogers & Appan subsp araliaefolia (Pax) Rogers &
Appan, stat nov
Manihot araliaefolia Pax in Engler, Pflanzenreich IV. 147(Heft 44): 26. 1910 ex parte.
Manihot canastrana Glaziou, Bull. Soc. Bot. France 59(3): 628. 1912 (1913) nom rejic.
Plant parts less densely tomentose. Leaves 7 lobed, rarely 5. Inflorescence loose, the
central peduncle occasionally with lateral branches. Fig 103A.
TYPE. Glaziou 22137: Brasil, Goias: Fazenda da Cava, pres du Morro da Canastra,
23 Nov 1894 (syntypes, F-2, NY, P).
DISTRIBUTION. (Fig 102A). BRASIL. Goias: Irwin, Grear, Souza & dos Santos 14195 (F, G,
GH, K, MO, NY, RB, SP, UB, US, W) Cerrado Rio Parana circa 35 km N of Formosa on Road to Sao
Gabriel, 28 Mar 1966; Irwin, Souza, Grear & dos Santos 15529 (F, NY, UB) Corrego Itaquera, circa 30
km N of Formosa, 2 May 1966.
16. Manihot sect Brevipetiolatae Pax emend Rogers & Appan
Manihot sect Brevipetiolatae Pax in Engler, Pflanzenreich IV. 147(Heft 44): 95. 1910.
Manihot sect Weddellianae Pax in Engler, Pflanzenreich IV. 147(Heft 44): 98. 1910.
Plants caulescent; low to medium shrubs; leaves widely spaced on stem; subsessile,
petiole attachment basal, lamina membranaceous to coriaceous, nonlobed. Inflorescence a
monoecious subspicate raceme, single or 2 or 3 racemes arising from a common base;
bracts and bracteoles setaceous to foliaceous, margins entire to laciniate.
TYPE. Manibot orbicularis Pohl.
DISTRIBUTION. (Fig 104).
Key to the Species of Sect Brevipetiolatae
1. Leaves less than 10.0 cm wide, linear, lanceolate, gladiate, digitate, ovate or obovate, not
orbicular.
2. Leaves less than 1.25 cm wide; linear. 87. M. stricta.
2. Leaves more than 1.25 cm wide; lanceolate, gladiate, digitate, ovate or obovate.
3. Leaf venation camptodromous; leaves more than 2.0 cm wide, margins entire, no
secondary lobes present; bract and bracteole margins entire, rarely serrate.
4. Bracts and bracteoles setaceous, less than 0.25 cm wide; glabrous; leaf lobes less than
15.0 cm long, more than 3.0 cm wide; lanceolate. 88. M. purpureo-costata.
4. Bracts and bracteoles foliaceous, more than 0.5 cm wide; glabrous; leaf lobes less than
15.0 cm long, more than 3.0 cm wide; ovate or obovate. 89. M. salicifolia.
4. Bracts and bracteoles semifoliaceous, 0.25-0.5 cm wide, sparsely pubescent; leaf
lobes more than 15.0 cm long, less than 3.0 cm wide; gladiate.
90. M. attenuata.
3. Leaf venation craspedodromous; lobes less than 2.0 cm wide, margins repand or incised,
usually with attenuate secondary lobes at base; bract and bracteole margins laciniate.
91. M. weddelliana.
1. Leaves more than 10.0 cm wide, orbicular. 92. M. orbicularis.