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Les Cypéracées Forestières De Côte D'ivoire

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Les Cypéracées Forestières De Côte D'ivoire G. LOROUGNON LES CYPÉRACEES FORESTI~WES DE C6TE i3’llVOIIRE ÉDITIONS DE L’OFFICE DE LA RECHERCHESCIENTIFKLUE ET TECHNIQUEOUTRE-MER RENSEIGNEMENTS, CONDITIONS DE VENTE Pour tout renseignement, abonnement aux revues pkriodiques, achat d’ouvrages et de cartes, ou demande de catalogue, s’adresser à : I SERVICE CENTRAL DE DOCUMENTATION DE L’ORSTOM 70-74, route d’Aulnay, 93-BONDY (France) - Tout paiement sera effectué par virement postal OU chéque bancaire barré, au nom du Régisseur des Recettes et Dépenses des SSC de I’ORSTOM, 70-74, route d’Aulnay, 93-BONDY; compte courant postal no 9.152-54 PARIS. - Achat au comptant possible à la bibliothèque de I’ORSTOM, 24, rue Bayard, PARIS (83. BEVUES ET BULLETIN DE L’ORSTOM 1. CAHIERS ORSTOM cJ Séries non encore périodiques : - Biologie (3 ou 4 numéros par an) a) Skies trimestrielles : - Géophysique - Entomologie médicale - Océanographie et para.sltologie Prix selon les numéros - Hydrobiologie - Pédolcgie (1 J - Hydrologie - Sciences humaines II. BULLETIN ANALYTIQUE D’ENTOMOLOGIE MEDICALE ET Abonnement : France 95 F; Etranger 115F; le num&o 25 F VETERINAIRE b) Série semestrielle : (Mensuel] - Géologie Abonnement : France 75 F : Etranger 80 F ; le num&ro 40 F Abonnement : France 75 F : Etranger 85 F: le num&ro 8 F (1) Masson et Cie, 120, bd Saint-Germain, Paris-W, kpositalres de cette série à compter du vol. VIII, 1970. Abonnement France : 98F; Etranger : 134 F. Parmi nos publications, nous rappelons : MÉMOIRES : no 7 - ADJANBHOUN (E*) - 1964 - Végétations des sabanes et des roch?rs découverts en Côte d’ivoire Centrale. 250 p. 105 F no20 - CXJlLLAUMET (J.-L.) - 1967 - Recherches sur la végétation et la flore de la région du Bas-Cavally, Côte d’ivoire. 249 p. + 1 carte h. t. 72 F no 22 -HALLE @.) - 1967 - Etude biologique et morphologique de la tribu des Gardéniées (Rubaciées). 146 p. 69 F LES CYPÉRACEES FORESTIÈRES DE CÔTE D’IVOIRE MÉMOIRES ORSTOM N” 58 G. LOROUGNON Docteur ès-Sciences Maître de Recherches à l’O.R.S.T.0.M. LES CYPÉRACÉES FORESTIÈRES *DE CÔTE D’IVOIRE ORSTOM PARIS 1972 La loi du 11 mars 1957 n’autorisant. aux termes des alinéas 2 et 3 de l’article 41. d’une part, que les « copies ou reproductions strictement réservées à l’usage privé du copiste’et non destinées à une utilisation collective » et, d’autre part, que les analyses et les courtes citations dans un but d’exemple et d’illustration, « toute représentation ou reproduction intégrale, ou partielle, faite sans le consentement de l’auteur ou de ses avants-droit, ou avants-cause., est illi- Cite » (alin6a ler de l’article 40). Cette représentation ou reproduction, par quelque procédé que ce soit, constituerait donc une contrefaçon sanctionnée par les articles 425 et suivants du Code Pénal. 0 O.R.S.T.O.M. 1972 . Sommaire INTR~DU~I~N . 9 1. LES RHYNCHOSPORÉES: 1. La Tribu des Rhynchosporées: A. Généralités . B. Clef des genres des Rhynchosporées . ..“........“...‘........................ :: II. Le genre Rhynchospora : A. Généralités . 13 B. Systématique et phytogéographie . 14 III. Monographie de Rhynchospora corymbosa (Linn.) Britt. 14 IV. Rhynchospora corymbosa (Linn.) Britt. et le milieu forestier : A. Conquête du milieu forestier . ................................ B. Associations à Rhynchospora corymbosa. (Linn.) Bntt. ................................:z 2. LES SCLÉRIÉES: 1. La Tribu des Sclériées : A. Généralités . * . ...................... ......... 21 B. Clef des genres des Sclériées . ................................ 21 II. Les genres Scleria et Diplacrum : A. Le genre Scleri~ - Généralités . ..-...................................... 22 B. Systématique et phytogéographie du genre Scleria . 22 C. Clef des Scleria de forêt de Côte d’ivoire . :. .) . D. Généralités sur le genre Diplacrum . ;: III. Monographie des Scleria de forêt et de l’espèce Diplacrum longfolium (Griqeb.) C.B,Cl. A. Monographie des Scleria de forêt ..................... .. r . < 24 1. Scleria racemosa Poir. .......... -“” ’ . .... 24 2. Scleria verrucosa WiIld. .. :. ..... 1:: : 1: :: 1 1:: ‘::: . .... 24 3. Scleria Barteri Boeck. ............................. < 27 4. Scleria melanomphala Kunth ....................... 5. Scleria pterota Presl .............................. , . z 6. Scleria lithosperma Sw. ............................ 29 7. Scleria nyassenisis C.B. Cl. ......................... 29 8. Scleria naumanniana Boeck. ........................ 33 B. Monographie de Diplacrum longifolium R. Br. ....................................... 33 IV. Quelques considérations biologiques ............................................................. 38 3. LES CYPÉRÉES: 1. La Tribu des Cypérées ........................................................................ 39 A. Généralités ................................................................................ 39 B. Clef des genres des Cypérées ................................................................ 39 8 LES CYPÉRACÉES FORESTIÈRES DE CÔTE D’IVOIRE II. Lc genre Cyperus : A. Généralités ........................................................ ...................... 40 B. Systématique et phytogéographie du genre Cyperus .......................................... 40 C. Clef et monographie des espèces forestières de.Côte d’ivoire ................................... 41 1. Clef des especes ......................................................................... 41 2. Monographie ......................................... ................................... 42 1 Cyperus fertilis Boeck. ................................................................. 2 Cyperus mapanioides C.B. Cl. ........................................................... :3 3 Cyperus nudicaulis Poir. ................................................................ 43 4 Cyperus articulatus L. .................................................................. 47 5 Cyperus Renschii Boeck. ............................................................... 47 6 Cyperus dilfus Vahl .................................................................. 47 7 Cyperus radiatus Vahl .................................................................. 51 4. LES HYPOLYTRÉES: 1. Caractères généraux et clef des genres des Hypolytrées : A. Caractères généraux ......................................................................... 53 B. Clef des genres ............................................................................ 53 II. Les genres Mapania et Hypolytrum : A. Conceptions actuelles sur la position systématique des genres Mapania et Hypolytrum ............ 54 B. Clef des Mapania et Hypolytrum de Côte d’ivoire ............................................ 58 1. Clef des Mapania ........................................................................ 58 2. Clef des Hypolytrum ..................................................................... 59 C. Phytogéographie des genres Mapania et Hypolytrum ........................................... 59 1. La forêt à Mapania et la répartition des Mapania et des Hypolytrum en Côte d’ivoire 61 2. Association à Mapania ivorensis, Mapania Baldwinii et Mapania Linderi .. ..... ........................ 64 3. Répartition des Mapania et des Hypolytrum dans le monde ................................. 64 III. Etude morphologique : A. Etude de l’appareil végétatif des Mapania et des Hypolytrum .................................. 66 1. Les Hypolytrées à ramification sympodique ................................................ 66 2. Les Hypolytrées à ramification monopodique ........... :. .................................. 66 3. La feuille des Mapania et des Hypolytrum ................................................. 67 B. Etude de l’appareil floral des genres Mapania et Hypolytrum 1. L’inflorescence ................................................................ .i ........ 67 a L’inflorescence des Hypolytrum ......................................................... 68 b L’inflorescence des Mapania ............................................................ 68 2. L’épillet des Mapania et des Hypolytrum de Côte d’ivoire .................................. 68 IV. Monographie des Mapania et des Hypolytrum de Côte d’ivoire : A. Monographie des Mapania ................................................................. 69 1. Mapania Baldwinii Nelmes ................................................................ 2. Mapania Linderi Hutch. .................................................................. ” 3. Mapania Mangenotiana G. Loroug. ........................................................ 74 4. Mapania coriandrum Nelmes ............................................................. 74 5. Mapania ivorensis J. Rayn. ............................................................... 74 6. Mapania rhynchocarpa G. Loroug. et J. Rayn. .............................................. 78 7. Mapania minor J. Rayn. .................................................................. 78 B. Monographie des Hypolytrum ............................................................... 78 1. Hypolytrum poecilolepis Nelmes ........................................................... 2. Hypolytrum heteromorphum Nelmes ........................................................ ;: 3. Hypolytrum africanum Nees ............................................................... 4. Hypolytrum Testui Cherm ................................................................ 8: 5. Hypolytrum heterophyllum Boeck. .......................................................... 84 5. RÉCAPITULATION.. ................................................................................
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