<strong>Pourouma</strong> 123 white-arachnoid indument is usually confined to the areoles. In P. bicolor the reticulum is, in most of the subspecies, merely slightly prominent to pl<strong>an</strong>e <strong><strong>an</strong>d</strong> usually inconspicuous as the arachnoid indument usually also occurs on the smaller veins. However, in a form of P. bicolor subsp. bicolor, occurring in the western part of the r<strong>an</strong>ge of the subspecies, the arachnoid indument is confined to the very small areoles surrounded by relatively thick veinlets, <strong><strong>an</strong>d</strong> in P. bicolor subsp. scobina the arachnoid indument is also more or less confined to the areoles, but in this subspecies this feature is combined <strong>with</strong> ? prominent smaller veins. In P. gui<strong>an</strong>ensis two allopatric subspecies c<strong>an</strong> be recognized. Key to the Subspecies of <strong>Pourouma</strong> gui<strong>an</strong>ensis 1. Lamina 3-5-fid to -parted; leafy twigs <strong><strong>an</strong>d</strong> petioles <strong>with</strong> long yellow hairs; stipules hairy inside; fruiting peri<strong>an</strong>th 2-2.5 cm long; northern Venezuela ................ b. subsp. venezuelensis. 1. Lamina entire, 5-7-fid to -parted, or if 3-5-fid to -parted, then the leafy twigs <strong><strong>an</strong>d</strong> the petioles <strong>with</strong>out long yellow hairs, the stipules glabrous inside, <strong><strong>an</strong>d</strong>/or the fruiting peri<strong>an</strong>th 1.2-2 cm long; Gui<strong>an</strong>a region, eastern Brazil, Amazon Basin to eastern Colombia. ........ a. subsp. gui<strong>an</strong>ensis. la. <strong>Pourouma</strong> gui<strong>an</strong>ensis Aublet subsp. gui<strong>an</strong>ensis. Fig. 59. <strong>Pourouma</strong> palmata Poeppig & Endlicher, Nov. gen. sp. pi. 2: 29, t. 141. 1838; Tr6cul, Ann. Sci. Nat. Bot., Ser. 3, 8: 104. 1847; Miquel in Martius, Fl. bras. 4(1): 126. 1853; Macbride, Publ. Field Mus. Nat. Hist., Bot. Ser., 13(2.2): 293. 1937. Type. Peru. S<strong>an</strong> Martin: Tocache, Aug 1830 (6 <strong><strong>an</strong>d</strong> 9), Poeppig s.n. or 1881 (holotype or syntypes, W, destroyed; lectotype, G (Q specimen!), fragment of 6 specimen in F). <strong>Pourouma</strong> acutiflora Trecul, Ann. Sci. Nat. Bot., S&r. 3, 8: 105. 1847; Miquel in Martius, Fl. bras. 4(1): 126. 1853. Type. Brazil. Rio de J<strong>an</strong>eiro: Without locality, 1839 (6), Guillemin 1024 (holotype, P). <strong>Pourouma</strong> cinerascens Martius ex Miquel in Martius, <strong>Pourouma</strong> scabra Rusby, Bull. New York Bot. Gard. 6: 498. 1910. Type. Bolivia. P<strong><strong>an</strong>d</strong>o: S<strong>an</strong>ta Barbara, 30 Aug 1902 (9), R. S. Williams 1560 (holotype, NY; isotype, US). <strong>Pourouma</strong> radula Benoist, Bull. Mus. Hist. Nat. (Paris) 28: 320. 1922; Woodson & Schery, Ann. Missouri Bot. Gard. 47: 166, t. 58. 1960. Type. Colombia. Without locality, <strong>with</strong>out date (a), Tri<strong>an</strong>a 860 (ho- lotype, P; isotypes, E, NY). <strong>Pourouma</strong> subtriloba Rusby, Mem. New York Bot. Gard. 7: 232. 1927. Type. Bolivia. La Paz: Nr. Tu- mapasa, 12 Oct 1921 (9), Cardenas 1990 (holotype, NY; isotypes, GH, US). <strong>Pourouma</strong> substrigosa Mildbraed, Notizbl. Bot. Gart. Berlin-Dahlem 10:192. 1927; Macbride, Publ. Field Mus. Nat. Hist., Bot. Ser., 13(2.2): 293. 1937. Type. Peru. Loreto: Pongo de M<strong>an</strong>seriche, 26 Nov 1924 (8), Tessm<strong>an</strong>n 4642 (holotype, B, isotypes, B, G, NY). <strong>Pourouma</strong> mildbraedi<strong>an</strong>a St<strong><strong>an</strong>d</strong>ley, Publ. Field Mus. Nat. Hist., Bot. Ser., 17: 183. 1937. Type. Brazil. Amazonas: Mun. Sao Paulo de Olivenoa, nr. Pal- mares, 11 Sep-26 Oct 1936 (a), Krukoff 8386 (ho- lotype, NY; isotypes, A, BR, F, G, LE, MO, P, S, U, US). Leafy twigs pale to bright yellow-hirtellous to -subvelutinous to -hirsute, brown, pluricellular hairs dense to sparse. Lamina entire, 3-5-lobed to -parted, or sometimes 5-7-parted, base shal- lowly to deeply cordate or sometimes rounded; lateral veins mostly 10-16, sometimes up to 20, or occasionally up to 25 pairs; stipules outside pale to bright yellow-hirtellous, -subvelutinous, -subtomentose or -hirsute, inside glabrous or sometimes hairy. Fruitingperi<strong>an</strong>th 1.2-2 cm long, mostly densely hairy, sometimes sparsely hairy or scabrous. Distribution (Fig. 60). Throughout the Ama- zon Basin, extending to eastern Colombia <strong><strong>an</strong>d</strong> the Gui<strong>an</strong>a region; occurring disjunctly in east- ern Brazil (from Pernambuco to S<strong>an</strong>ta Catarina); mostly in non-inundated forest, sometimes in periodically inundated (varzea) forest; mostly at low altitudes, in Venezuela (Bolivar) up to ca. 1300 m, in Bolivia up to 1500 m. Specimens examined. Colombia. Without locality, <strong>with</strong>out date (d), Tri<strong>an</strong>a 860 (E, NY, P, type collection Fl. bras. 4(1): 125, t. 37. 1853. Type. Brazil. Ama- of P. radula), <strong>with</strong>out date (6 <strong><strong>an</strong>d</strong> 9), Tri<strong>an</strong>a s.n. (E, P). zonas: Rio Japura, Maripi, <strong>with</strong>out date (6), Martius META: Puerto Lopez, 3 Aug 1944 (st), Liitle et al. 8423 s.n. (holotype, M; isotypes, M, U). (F); Villavicencio, Ll<strong>an</strong>o de S<strong>an</strong> Martin, <strong>with</strong>out date <strong>Pourouma</strong> heterophylla Martius ex Miquel in Martius, (9), Karsten s.n. (GOET, LE). Fl. bras. 4(1): 125. 1853. Type. Brazil. Amazonas: VENEZUELA. AMAZONAS: Rio M<strong>an</strong>avicke, Indi<strong>an</strong> Rio Japura, Dec 1819 (st, juv), Martius s.n. (holo- village "Kalchi-Teri," <strong>with</strong>out date (juv.), Lizot s.n. type, M; isotypes, M, U). (VEN); Sierra Parima, 1300 m, 18-23 May 1972 (st), <strong>Pourouma</strong> fulginea Miquel in Martius, Fl. bras. 4(1): Steyermark 106086 (NY); Parima Mts., nr. Simara- 129. 1853. Type. Brazil. Amazon Basin, <strong>with</strong>out date wochi, Rio Matacuni, 18 Apr-23 May 1973 (d), Stey- (Q), Martius s.n. (holotype, M; isotype, U). ermark 107154 (F, U, VEN). BOLIVAR: Reserva Fo-
124 Flora Neotropica JII'd~~~~~~~i _ ,e 4~, ,. \ as t af + POUROUMA einerascenx
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Organization for Flora Neotropica C
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Copyright ? 1990 The New York Botan
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2 Flora Neotropica ABSTRACT Berg, C
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4 Flora Neotropica COUSSAPOA Engler
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6 Flora Neotropica Ni 3 4 5 FIG. 1.
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8 Flora Neotropica 1 2 3 4 5 6 7 a
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10 Flora Neotropica silicified oute
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12 Flora Neotropica v* r r'^S'9n 7
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1.trinervia *C.villosa Poeppig 6 En
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16 Flora Neotropica Table I Extreme
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18 Flora Neotropica 11. Lamina and
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20 Flora Neotropica anth; pistillat
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22 Flora Neotropica 66. Arachnoid h
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24 Flora Neotropica 2. Key to the C
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26 Flora Neotropica 3. Lateral vein
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28 Flora Neotropica 1. Interfloral
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30 10 Sep 1965 (st), Van Donselaar
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32 Flora Neotropica c. FIG. 12. Cou
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34 Flora Neotropica Key to the Subs
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36 Flora Neotropica 4b. Coussapoa a
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38 Flora Neotropica (MO); Dto. Anto
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40 Flora Neotropica FIG. 16. Coussa
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A' .. . FIG. 17. Coussapoa brevipes
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44 Flora Neotropica This species re
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46 Flora Neotropica 1 cm FIG. 20. C
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48 Flora Neotropica tion plane; pet
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50 Flora Neotropica This species ha
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52 Flora Neotropica I 1 cm FIG. 24.
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54 2 ~ ? I wo t :1cm Flora Neotropi
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56 Flora Neotropica G. 27. oussapoa
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58 Flora Neotropica to subsericeous
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60 cm1 2 I! 1 Flora Neotropica FIG.
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FIG. 31. Coussapoa latifolia: 1, le
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64 Flora Neotropica FG2 3,si1e tg t
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66 Flora Neotropica Distribution (F
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FIG.c3.m cousapoa anuenss 1 leves s
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70 Flora Neotropica berulous to hir
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Pourouma 173 465 (P); Trois Sauts,
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Pourouma 175 I0711~~~~~~~~~~~~~~~~~
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Pourouma 177 Specimens examined. VE
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Pourouma 11 '.ciLnnr'.mon-lik 2 3 4
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Pourouma 181 the areoles; lateral v
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Pourouma 183 Ak~~~~~~~~~~~~?IIk i.
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Pourouma 185 I I STPE ,E Fn CL1 |SO
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Pourouma 187 . . . FIG. 91. Pouroum
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Pourouma 189 upper Rio Madre de Dio
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Pourouma 191 bi f In i FIG. 92. Pou
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Pourouma (BG), 9 Dec 1977 (d), Gent
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Literature Cited 195 and distributi
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Exsiccatae 197 e. subsp. chocoana (
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Exsiccatae Dombey, J., s.n. (1-42).
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Exsiccatae 201 Korning, J. et al.,
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Exsiccatae 20); 15764 (1-40); 15791
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Exsiccatae 205 Weberbauer, A., 3639
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Index of Scientific Names 207 conto