Bactris glassmanii Med.-Costa & Noblick ex A.J.Hend., Fl. Neotrop. Monogr. 79: 78 (2000)

Primary tabs

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Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Brazil Northeastpresent (World Checklist of Arecaceae)B
Atlantic coastal forest in Brazil (Alagoas, Bahia, Pernambuco). (Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000)A

Habitat

  • Coastal restinga vegetation on sandy soils, and adjacent forest areas, near sea level. (Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000)A

Discussion

  • Bactris glassmanii is diagnosed by its scattered, yellowish brown, somewhat flattened leaf spines to 3 cm long, peduncular bract curving down from the apex over the developing infructescence; and purple-black fruits. It is named for Sydney Glassman, student of American palms. (Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000)A

Common Name

  • Brazil: ariri. (Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000)A

Description

  • Stems cespitose, 1-3 m tall, 0.8-2 cm diam., not spiny.
    Leaves 3-8; leaf spines scattered, yellowish brown, somewhat flattened, to 3 cm long, dense on sheath and lateral surfaces of petiole, fewer or absent on rachis; sheath 10:-20 cm long, fibrous at apex; ocrea to 20 cm long; petiole (5-)10-60(-68) cm long; rachis (30-)45-90(100) cm long; pinnae 12-25 per side, irregularly arranged in clusters of 2-5, spreading in different planes, linear or lanceolate; middle pinnae 10-40 x 0.5-5.5 cm.
    Inflorescences interfoliar; peduncle 4-15 cm long, straight, not spiny; prophyll not seen; peduncular bract 8-24 cm long, brownish tomentose, moderately covered with straight, reddish brown spines to 7 mm long, curving down from the apex over the developing fruits; rachis 4-10 cm long; rachillae 4-24, 2-8 cm long, at anthesis densely covered with moniliform trichomes; triads irregularly arranged among paired or solitary staminate flowers; staminate flowers 3-4 mm long, sometimes pedicellate; sepal lobes 1 mm long; petals 3-4 mm long; stamens 6; pistillode trifid, to 1 mm long; pistillate flowers 2-3 mm long; calyx cupular, 0.5 mm long; corolla tubular, 1.7-2.5 mm long; staminodes not seen;fruits 0.6-2 cm diam., depressed-globose, briefly rostrate, purple-black; mesocarp juicy; endocarp depressedglobose, the sterile pores displaced longitudinally; endocarp fibers free, numerous, with juice sacs attached; fruiting perianth small, entire-margined, 1 mm long calyx and entire margined, 2 mm long corolla, without staminodial ring. (Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000)A

Bibliography

A. Henderson, A.J., Bactris (Palmae) in Flora Neotropica Monographs 79. 2000
B. World Checklist of Arecaceae