Saribus jeanneneyi (Becc.) C.D. Bacon & W.J.Baker, Palms 55: 113 (2011)

Primary tabs

http://media.e-taxonomy.eu/palmae/photos/palm_tc_165578_2.jpg

Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
New Caledoniapresent (World Checklist of Arecaceae)B

Discussion

Diagnosis

Biology And Ecology

Description

  • Moderate, solitary, armed, pleonanthic, hermaphroditic, tree palm. Stem erect, smooth, ringed with conspicuous leaf scars. Leaves induplicate, briefly costapalmate, neatly abscising; sheath disintegrating into a network of fine rusty-brown fibres; petiole elongate, adaxially flat to ridged, abaxially rounded, margins distally smooth, basally with short recurved spines in juvenile plants, smooth in adults, adaxial hastula short, rounded, abaxial hastula lacking; blade stiff, regularly divided to or beyond the middle into single-fold, briefly bifid, lanceolate, spreading segments, glabrous on both surfaces, midribs and intercostal ribs prominent, transverse veinlets conspicuous. Inflorescences interfoliar, branched to 4 orders, branches angled; peduncle very short, flattened; prophyll not seen, inserted above the base; peduncular bracts lacking; rachis very short, deeply divided into 3 elongate first-order branches, each branch bearing l peduncular bract below 2 unilateral second-order branches subtended by tubular, chartaceous bracts, bifid and flaring at the apex; proximal two second-order branches flattened, adnate to the first-order branch, subsequent second-order branches not subtended by tubular bracts, not adnate; bracts not evident at bases of rachillae; rachillae short, ± clustered at the ends of second-order branches, bearing rather distant cincinni of 3 flowers basally and solitary flowers distally. Flowers sessile, ebracteolate; calyx tubular, adnate basally to the receptacle, with 3 short free lobes; petals 3, briefly connate basally, valvate and adaxially hollowed distally, persistent; stamens 6, inserted at throat of the corolla, filaments erect, briefly connate and adnate to the petals basally, anthers erect, subglobose, sagittate, introrse; gynoecium globose-trilobate, trilocular, triovulate, carpels distinct in ovarian region, connate through styles, style slender, short, awl-shaped, stigma dot-like, ovule inserted basally, anatropous. Pollen ellipsoidal, occasionally slightly asymmetric; aperture a distal sulcus; ectexine tectate, aperture margin similar; infratectum columellate; longest axis 23–24 µm [1/1]. Fruit large, 1-seeded, globose, with apical stigmatic remains; epicarp smooth, purplish, mesocarp fleshy to fibrous near endocarp, endocarp woody, rounded on one side, keeled on the opposite side, laterally elongate and attenuate basally. Seed globose, erect, hilum basal, raphe orbicular, adjacent to hilum, endosperm homogeneous, deeply hollowed out basally with a large, erect intrusion of seed coat; embryo eccentrically apical. Germination remote-tubular; eophyll entire, oblanceolate, toothed distally. Cytology not studied. (Dransfield, J., Uhl, N.W., Asmussen, C.B., Baker, W.J., Harley. M.M. & Lewis, C.E., Genera Palmarum; The evolution and classification of Palms)A

Anatomy