Korthalsia (Feb 2009) Species.Pub
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Korthalsia laciniosa (Griff.) Mart. Hist. Nat. Palm. 3: 211 (1845). Indochina to Philippines *Calamus laciniosus Griff., Calcutta J. Nat. Hist. 5: 23 (1845) Clustering Branching Cirrus Look for: ∞ Fish tail leaflet ∞ Leafsheath mouth lacerate ∞ Fibrous with ocrea ∞ Inflorescence catkin Common Name Daanan/Tapnigid (Agusan) Distribution/Habitat Second growth, steep slope 500 m alt. Description Cane diameter 1.5 cm, sheath sparsely spiny. • Leaf cirrate, petiolate, 12-20 cm long petiole and rachis with brownish buff indumentrum, leaf- lets whitish underneath. No knee, ocrea flat on sheath 4 cm long Fruit fibrous down to enveloping sheath. Inflorescence flower rachillae Seed catkin. Uses No commercially tap basket making 176 Philippine Rattans K. laciniosa 177 Korthalsia merrillii Becc. Ann. Roy. Bot. Gard. (Calcutta) 12 (2): 128 (1918). Philippines (Palawan). Clustering Climbing Cirrus armed Look for: ∞ Spikes amentiform ∞ Densely spinous ocrea ∞ Green on both surface Common Name Buragat (Tag.) / Taing manok (Tagb.) Distribution/Habitat Luzon (Palawan). Plant of primary forest and hapaxanthic and grows in 50-200 masl Description • Cane 0.6 cm diameter. Plant 25 m tall, 1 cm diameter, Sheath bright green and few spines. (Medulid 1001) spines many or sheath. Leaves 1m long, petiole 5 cm long. Infructescence terminal. Catkin like. Presence of ocrea envelop- Bracts are dense, spiral, and overlap- ing/tubular ocrea. Spines color ping. Flowers are hermaphrodite and brown. Leaflets 4 per side of the Amentiform. Primary and secondary rachis, rhomboidal cuneate, spathes are appressed. Bracts tips praemorse, and galucous. Leaflets with extenders small leaf with cirrus. concolorerous. Leaf cirrate. Leaf- lets near inflorescence smaller Fruit oblong 1.8 x 1.5 cm, beak squarry. pointed scales deeply furrowed 12 VL Uses Handicrafts, for binding 178 Philippine Rattans K. merrillii 179 Korthalsia rigida Blume Rumphia 2: 167 (1843). Pen. Thailand to Philippines (Palawan). Clustering Climbing Knee developed Look for: ∞ Sheath dull green, petiole armed ∞ Spines triangular ∞ Leaflets rhomboidal cuneate Distribution/Habitat Luzon (Palawan); plant hapaxan- thic. It grows in the area with 200- 500 masl. Description Cane 2 cm diameter. Plant height with 5 m tall, clustering stem with 2.5 cm diameter. Leaf has .5—1.5 m long. Petiole 2- 5 cm long an armed. Its leaflets are alternate with 4-6 perside of the rachis having 12-18 cm long and 5-7 cm wide. Its shape is rhomboi- dal cuneate. Leaflets praemorse with 6-7 nerves. Fruit globose or rounded, 8 to 12 mm long, 8 to 10 mm diameter, color brown. It scales with 12 to 15 vertical Inflorescence bracts are dense, rows. spiral, overlapping and its bracte- oles 0.4 cm long. Calyx cyathiform, Seed corolla 2x as long as the calyx. It has 6 stamen. Its flowers are her- maphrodite. Uses Canes for tying and basketry. K. rigida 181 Korthalsia robusta Blume Rumphia 2: 170 (1843). Sumatera to Philippines. 42 BOR PHI SUM. Clustering Climbing Cirrus Look for: ∞ Sheath bright green ∞ Presence of ocrea ∞ Leaflets praemorse Distribution/Habitat Luzon (Palawan and Balabac). Plant of primary forest. Description • Sheath armed with black acicular. Plant 20 m tall with 3.5 cm diame- ter, cane 2.5 cm diameter. Ocrea 15 cm long enfolding pointed, armed with long (2 cm) spines • Leaves has 1.5 m long. Petiole 30 m long withspines 10 mm long. Leaflets 7 per side of the rachis and shinny green. Cirrus 50 m long. Fruit Inflorescence catkin like. Bracts dens, spiral and overlapping. Its Has 25 mm thick and 40 mm long. Its flowers are hermaphrodite. color is brown. Uses Handicrafts 182 Philippine Rattans Korthalsia robusta Bl. A. portion of stem and ocrea. B. tip of ocrea. C. petiole. D. leaflet E. cirrus. F. Part of congested inflorescence. G. flower. H. fruit. K. robusta 183 Korthalsia scaphigeroides Becc. Becc., Philipp. J. Sci., C 4: 619 (1909) Clustering Slender Cirrus Look for: ∞ Appressed spathes ∞ Elongated—elliptic ocrea ∞ Leaflets more or less nearly white underneath Distribution/Habitat Luzon and Mindanao (Basilan, Davao). It grows in 10-200 masl. • Description Cane has 15-18 cm diameter. Peti- ole 20 cm long and 4mm wide. Ocrea 9-10 cm long. Spines scat- tered. Leaf cirrate, petiolate. Leaflets petiobilate are alternate. Measure- ment of leaflets 20 cm long and 40- 50 mm wide. Its shape is rhomboi- • dal cuneate. Shinny green and glaucous. It has 7 nerves. With whitish underneath. Fruit Inflorescence primary and secon- unknown dary spathes are appressed.Catkin like. Bracts dense, spiral and over- Seed lapping. Its flowers are hermaph- unknown rodite and Uses Handicrafts, ornamental 184 Philippine Rattans K. scaphigeroides 185 .