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

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Distribution

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