PDF - University Library

More documents

Recommendations

Info

222 FIELDIANA: BOTANY, VOLUME 28 Phoradendron karuaianum Steyermark, sp. nov. Frutex paras it icus furcatus, ramis oppositis pseud odichotomis vel cymosis teretibus, ad omnes nodos cataphyllis suffultis; internodiis 3-4 cm. longis; cataphyllis late deltoideo-triangularibus supra nodos 0.5-2 cm. insertis; foliis oppositis paullo falcatis vel symmetricis la nee ola to-elliptic is vel elliptico-ovatis basim versus et ad apicem sensim attenuatis, laminis 5-8 cm. longis, 1-3.5 cm. latis, in stato sicco minute ruguloso-verruculosis, palmatim 3-nervosis basinerviis; nervis inconspicuis non elevatis; petiolis 2-4 mm. longis alatis; spicis axillaribus ad nodos plerumque solitariis tenuibus 2-3 cm. longis, 1.5-2 mm. crassis cataphyllorum, jugis 3 et articulis 3 tenuibus gerentibus; pedunculis 2-3 mm. longis; articulis 3 et 5-8 mm. longis, 12-16-floris, prophyllis superne minute papillatis; floribus 2-seriatis: masculis minoribus, in diametro 1-1.1 mm. ad quoquem articulura infra flores foe rain ineas; foemineis raajoribus, in diametro 1.5-1.7 mm.; baccis oblongis laevibus 4 mm. longis, 2.5 mm. latis. Type in herb. Chi. Nat. Hist. Mus., collected in dense forest at base of Cerro along Rio Karuai, Ptari-tepuT, state of Bolivar, alt. 1220 m., November 27, 1944, Julian A. Steyermark 60659. Local name: "atapi". This is an exceptional species, belonging to the Dichotomae group, and apparently related to P laxiflorum Ule of Amazonas, Brazil, from which it differs in its thicker, longer, less-pointed leaves and more densely-flowered spikes. From P. Jenmani Trel. it differs in the pointed leaves and more densely many-flowered spikes. Furthermore, from some members of section Chrysocarpae it differs from P. haitense Urban in the broader, shorter blades, oblong fruits, and more densely-flowered spikes. It is well characterized by the combination of densely-flowered slender spikes, the flowers in two ranks, the oblong fruits, and the palmate ly-nerved thickish leaves. Phoradendron ptarianum Steyermark, sp. nov. Frutez parasiticus, ramis oppositis dichotomis teretibus dioicis; cataphyllis tantum ad nodos basales ramulorum 1-jugis sterilibus late deltoideo-triangularibus, 1.5 mm. longis, supra nodos 1.5-4 cm. insertis; foliis oppositis crasso-coriaceis paullo falcatis ellipticolanceolatis vel oblanceolato-oblongis basi angustatis, apice rotundatis vel obtusis, laminis 7-10 cm. longis, 1.5-4 cm. latis, in sicco minute ruguloso-verruculosis aereo- vel olivaceo-viridibus, marginibus plerumque albicantibus, penninerviis, nervis lateralibus inconspicuis; petiolis 12-25 mm. longis; spicis axillaribus ad nodos nonnullis olivaceo-viridibus, 1.2 cm. longis, 2-2.5 mm. crassis, cataphyllorum jugis 3-4 et articulis 4-5 gerentibus; pedunculis 2-3 mm. longis; articulis 4-5 et 5-6 mm. longis, 3 mm. latis, clavatis, 24-30- floris, floribus masculis (tantum visis) verticillatis 6-seriatis trimeris.
BOTANICAL EXPLORATION IN VENEZUELA - I 223 Type in herb. Chi. Nat. Hist. Mus., collected on forested southfacing slopes overlying sandstone, on "Cave Rock" above "Cave Camp", Ptari-tepui, state of Bolivar, alt. 1810 m., October 29, 1944, Julian A t Steyermark 59483, "parasite on shrub; leaves coriaceous, bronze to olive green both sides; spikes or rachis dull olive green; stem terete, dull green". From P. undulatum (Pohl) Eichler this species differs in its dioecious habit, longer petioles, prevailingly obtuse blades, and in the minutely papillate or suberose, instead of ciliolate, margins of the cataphylls. From P. Uleanum Steyerm. (P. macrophyllum Ule, not Cockerell)* of Mount Roraima, it differs in the obtuse, usually narrower blades, longer petioles, and crowded staminate flower spikes. Phoradendron tepuianum Steyermark, sp. nov. Frutex parasiticus furcatus, ramis oppositis dichotomis teretibus dioicis; internodiis 4-7 cm. longis; cataphyllis tantum ad nodos basales ramulorum 1- jugis sterilibus late deltoideo-triangularibus, 1 mm. longis, supra nodos 9-12 mm. insert is; foliis oppositis crassocoriaceis late obovatis vel elliptic o-obovatis basi subito attenuatis, apice rotundatis, laminis 3-6 cm. longis, 3-5 cm. latis, in sicco minute ruguloso-verruculosis aereo-olivaceo-viridibus novellis apicalibus leviter penninerviis adultis costa tantum basi manifesta, costae residuo et nervis lateralibus plerumque obsoletis; petiolis 7-10 mm. longis; spicis axillaribus ad nodos nonnullis lutescentiviridibus 2.5-5 cm. longis, 4-5 mm. crassis cataphyllorum jugis 4-5 et articulis 5 gerentibus; pedunculis 1-3 mm. longis; articulis 5 et 3-10 mm. longis, 2.5-5 mm. latis, clavatis, 10-16-floris, prophyllis 3-4 mm. longis apice papilla to-cilio latis, floribus foemineis (tantum visis)4- vel 4+2-seriatis; baccis oblongo-ovoideis 5 mm. longis. Type in herb. Chi. Nat. Hist. Mus., collected on dry sandy and rocky sandstone exposures on level ground adjacent to swamp on plateau-portion of south east- facing slopes, Ptari-tepui', state of Bolivar, alt. 1600 m., November 1, 1944, Julian A. Steyermark 59688, "parasitic on shrubs; leaves coriaceous, bronze olive-green; rachis and flowers yellow-green". Apparently a member of section Penninerviae and related to P. Northropiae Urban of the Bahamas and to P. Warmingii Eichl. of Brazil. From the latter it differs in the terete stems and more numerous joints of the flowering spikes, while from the former it differs in the stouter, longer spikes and stouter branches. In some respects this new species resembles P. Macbridei Standl. of Peru, but that 'Phoradendron Uleanum Steyermark, nom. nov. Phoradendron macrophyllum Ule, Notizbl. Bot. Gart. Berl. 6: 291. 1915, not Phoradendron macrophyllum Cockerell, Am. Nat. 34: 293. 1900.
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:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190: BOTANICAL EXPLORATION IN VENEZUELA
Page 239: 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?