PDF - University Library

More documents

Recommendations

Info

210 FIELDIANA: BOTANY, VOLUME 28 MORACEAE l 4 Cecropia kavanayensis Cuatr., sp. nov. Arbor ramulis scabris copiose hamato-pilosis. Folia mediocria coriacea peltata petiolata. Petiolus robustus striatus albicans adpresse villosus et minute arachnoideus, basi subtus pulvinum brunneum dense tomentosura incrassatus. Lamina palmata profunde (2/3) 7-lobata, lobis subobovato-oblongis apice obtusis basi angustatis, margine incegra vel levissime sinuata; lobo maximo ab insertione petioli usque ad apicem 28 cm. longo et 15.5 cm. lato, lobo minimo 12 cm. longo et 6.5 cm. lato, parte central! concrescenti 7-8 cm. radii; supra atroviridis conspectu glabra sed sparsissimis tenuissimis pilis araneosis munita, nervis primariis et secundariis conspicuis tertiariis transversis obsoletis superficie sub lente minutissime irreguliterque reticulato-alveolata vel rugulosa; subtus sericeocinerea nervis primariis crasso-eminentibus roseis laxe strigosis vel araneosis, nervis secundariis prominentibus roseis ascendentibus circa 1.5 cm. distantibus, laxe araneosis, tertiis transversis 2-3 mm. distantibus bene conspicuis, inter eos superficie dense cinereoarachnoideo-tomentosa. Inflorescentiae masculae geminatae. Pedunculus rigidus crassus valde brevis, dense tomentoso-hirsutus, 1-2 cm. longus. Spatha 8.5 cm. longa, cylindrico-oblonga apice abrupte acutata breviter apiculata, extus dense albido-villosa intus glabra sed sparsissimis pilis arachnoideis visibilis. Amenta masculina circa 10 pedicellata, 4-6 cm. longa maturitate in sicco 4-5 mm. crassa. Perianthium prismaticopyramidatum 6 farium striatum 1.5 mm. longura, costis apiceque minute hirsutulum. Pedicelli robusti rigidi basi in ad modum annulum crassum 3-5 mm. ahum coaliti, parte libera crassa 3-7 mm. longa, breviter tomentulosi et hirsutuli. Type in herb. Chi. Nat. Hist. Mus., collected on wooded slopes of Quebrada Oparu-ma', between Santa Teresita de Kavanayen and Rio Pacairo (tributary of Rio Mouak), state of Bolivar, alt. 1065-1220 m., November 20-21, 1944, Julian A. Steyermark 62754. This interesting species is related to C. obtusa Trecul., but differs from it chiefly by the smooth upper side of the leaves. The same character differentiates if from C. solanoensis Pitt. Other very typical features of C. kavanayensis are the short peduncles of the male inflorescences, the thick pedicels which are concrescent at the base, and the rigid, coriaceous leaves. Pourouma Steyerinarkii Standley et Cuatr., sp. nov. Arbor 14 m. alta. Ramuli subteretes pallido-virides cicatricibus stipularum annularis parum obliquis, cicatricibus foliorum depresso- 14 By Jose'Cuatrecasas
BOTANICAL EXPLORATION IN VENEZUELA - I 211 ovatis 3-4 mm. lads, internodiis 1-1.5 cm. longis striolulatis hirsutis. Stipulae terminates caducae 3-4 cm. longa oblongo-lanceolata, subvilloso-hirsuta, subnitida. Folia integra parva alterna coriacea pet io lata. Petiolus 5-6 cm. longus angustus sed robustus basi apiceque subite incrassatus breviter denseque hirsutus patulus. Lamina ovato-acuminata basi obtuse cuneata apice breviter cuspidata, 8-12 cm. longa, 4-6.5 cm. lata, margine brevissime sinuata vel conspectu integra; supra viridis, in sicco viridi-grisea, scabra pilis cornicis acutis basi callosis copiosis et pilis simplicibus tenuis longioribus sparsissimis munita, costa conspicua hirsutula, nervis secundariis ascendentibus minus conspicuis, tertiariis obsoletis; subtus costa crassiuscule eminent! subsericeo-hirsuta, nervis secundariis 6-7 utroque latere ascendentibus angulo acuto prominentibus subsericeo-hirsutis submarginem angustioribus arcuato-anastomosatis, venulis transversis crebris prominulis subsericeis cum alteris venulis tenuioribus obsoletum reticulum formantibus, costa nervis venulisque subsericeo-hirsutis inter hos reliqua superficie pilis tenuibus arachnoideis tomentum cinereum formantibus tecta. Inflorescentiae femineae cymosae ad terminationes ramorum axillares longe pedunculatae pauciflorae. Pedunculi graciles sed ridigi dense hirsuti 4-5 cm. longi. Saepe 3 ramulis centrale unifloro lateralibus 5-15 mm. longis crassiusculis hirsutis 3-4 flores ferentibus. Pedicelli crassi hirsuti breves 2 mm. longi. Perianthium femineum ova to-elliptic urn utriculosum 4 mm. longum, dense velutinum. Stigma peltato capitatum tomentosum. Capsula ovata apice acuta circa 12 mm. longa, et 6 mm. lata, pericarpio coriaceo-lignoso, perianthio carnoso griseo-viridi eduli inclusa. Type in herb. Chi. Nat. Hist. Mus., collected in the lower southfacing slopes of Mount Ptari-tepuf between Rio Karuai and first ridge above Rib Karuai, state of Bolivar, alt. 1220 m., November 28, 1944, Julian A. Steyermark 60665, "tree 40 feet tall, leaves firmly membranaceous, deep green above, ,gray below, fruit gray green, edible". Local name: "caibari-cai-yek". This new species is well characterized by its small, entire, thinly coriaceous leaves which are cuneate at the base and acuminate at the apex; they are rough, scabrous on the upper side and cinereous beneath. P ourouma Steyermarkii is similar to P. Mildbraediana St. and P. umbellate St. of the Amazonian basin, but the above eked characters differentiate it from them. P ourouma Mildbraediana has larger, thicker, stronger nerved leaves which are cordate or rotundate at the base, and P. umbellata has smooth leaves on the upper side, which are larger and thicker with more numerous, a cute angled, and stronger, sericeous nerves beneath. Pourouma Cucura Standley and Cuatr., sp. nov. Arbor mediocris. Caulis 30 cm. diam. cortice badi vel grisei, sub-
Page 2 and 3:
o 2 CM XI E> RAR.Y OF THL UNIVERSIT
Page 7:
FIELDIANA: BOTANY A Continuation of
Page 11 and 12:
NUMBER 1 LIST OF ILLUSTRATIONS TEXT
Page 13:
PAGE 67. Emmotum ptarianum 342 68.
Page 17 and 18:
CONTRIBUTIONS TO THE FLORA OF VENEZ
Page 19 and 20:
BOTANICAL EXPLORATION IN VENEZUELA
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
I BOTANICAL EXPLORATION IN VENEZUEL
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
[ BOTANICAL EXPLORATION IN VENEZUEL
Page 177 and 178: BOTANICAL EXPLORATION IN VENEZUELA
Page 227: BOTANICAL EXPLORATION IN VENEZUELA
Page 262: Publication 667
show all

PDF - University Library

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?