Bactris glassmanii Med.-Costa & Noblick ex A.J.Hend.
-
Authority
Henderson, A. 2000.
(Palmae). Fl. Neotrop. Monogr. 79: 1-181. (Published by NYBG Press) -
Family
Arecaceae
-
Scientific Name
-
Type
Type. Brazil. Bahia: Mun. Alagoinhas, 1012 km SW of Araras and W of BA 093, 12° 10' S, 38° 26' W, 100 m, 23 Nov 1988, L. Noblick & R. Soeiro 4686 (holotype, CEPEC; isotypes, BH, F, FTG, NY).
-
Description
Latin Diagnosis - Vagina foliorum, petiolus et spatha spinis flavis armata. Florum masculinorum pedicelli 1 mm longi.
Species 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 × 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 depressed-globose, 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.
-
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.
-
Common Names
ariri
-
Objects
-
Distribution
Atlantic coastal forest in Brazil (Alagoas, Bahia, Pernambuco) (Fig. 32A); coastal restinga vegetation on sandy soils, and adjacent forest areas, near sea level.
Brazil South America| Alagoas Brazil South America| Bahia Brazil South America| Pernambuco Brazil South America|