| Field notes | Siona: "Oco-be-to". Spanish: "Huiririma". A solitary tree growing at the margin of blackwater lake in the zone that is sometimes flooded. Along the lake it is often seen as a zonal tree between the igapó-forest and the terra firme forest. A basal mound hardly visible, the basal 5 cm of the trunk covered with downwards growing 0.5 cm thick adventitious roots. Trunk 11 m tall, 34 cm in diam at the base, 30 cm in diam 1 m up, 12 cm in diam below the crown; internodes densely covered with black, large, dorsiventrally flattened spines that turn downwards. Crown of 8 leaves that are more or less erect; petiole sheating the trunk for about 10 cm, 185 cm long, tapering gradually to 3 cm below the crown, margins with scleufied? fibers, abaxial side green, covered with large spines, adaxial side channeled, brown, smooth; blade 260 x 150 cm with 139 pinnae on each side, these leaving the rachis in different directions so the blade looks "fussy". Inflorescences 4, intrafoliar, erect; prophyll 55-75 cm long sheating the peduncle; spathe 110 x 30 cm falling off, leaving only a scar on the peduncle, spiny on the outside; peduncle (to spathe scar), 90-105 cm long, oval in cross-section, with only few spines; rachis ca 95 cm long; fruiting part ca 85 x 35 cm with many sidebranches, each carrying one to several, light green, smooth fruits. Uses: Fruits used to make necklaces. To fish the endosperm is used as bate. We extracted the fiber of this plant to compose it to A. chambira (4812) but it turned out to be with no strength (shorter ????). |
This record
Other records of Astrocaryum jauari