Aiphanes hirsuta subsp. fosteriorum (H.E.Moore) Borchs. & R.Bernal, Fl. Neotrop. Monogr. 70: 65 (1996)

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Distribution

Map uses TDWG level 3 distributions (https://github.com/tdwg/wgsrpd)
Colombia present (World Checklist of Arecaceae)C
Ecuador present (World Checklist of Arecaceae)C
Premontane wet and pluvial forest in SW Colombia and NW Ecuador. (Borchsenius F., Borgtoft-Pedersen H. and Baslev H. 1998. Manual to the Palms of Ecuador. AAU Reports 37. Department of Systematic Botany, University of Aarhus, Denmark in collaboration with Pontificia Universidad Catalica del Ecuador)A

Western Andean slopes from the department of Valle in Colombia to northern Ecuador, at 900-1300 m. (Borchsenius, F. and Bernal, R. 1996. Aiphanes (Palmae). Flora Neotropica 70. pp 1-95)B

Discussion

  • Diagnosed by its large size and wedgeshaped, grouped pinnae with a blunt lobe around the midrib. Fruits have deeply pitted endocarp. (Borchsenius F., Borgtoft-Pedersen H. and Baslev H. 1998. Manual to the Palms of Ecuador. AAU Reports 37. Department of Systematic Botany, University of Aarhus, Denmark in collaboration with Pontificia Universidad Catalica del Ecuador)A
  • This subspecies includes the largest plants in the species. with cuneate, lobulate praemorse pinnae and weakly armed inflorescences with up to 100 rachillae. It is set apart by several characters: glabrous pistil; large fruits, ca. 16-22 mm diam, with deeply pitted endocarp; and pollen with fusing, supratectal clavae giving a rugulate surface. (Borchsenius, F. and Bernal, R. 1996. Aiphanes (Palmae). Flora Neotropica 70. pp 1-95)B

Conservation

  • Vulnerable (Borchsenius & Skov 1999). Criteria B2c (Borchsenius F., Borgtoft-Pedersen H. and Baslev H. 1998. Manual to the Palms of Ecuador. AAU Reports 37. Department of Systematic Botany, University of Aarhus, Denmark in collaboration with Pontificia Universidad Catalica del Ecuador)A

Description

  • Understorey palm. Stems clustered, usually only one or a few large ones in each clone, to 10 m tall, 6-10 cm in diameter. Leaf blade 200-275 cm long; pinnae 15-25 on each side, inserted in groups of 3-4 and spreading in different planes, the central ones 35-60 cm long and 15-25 cm wide, rough below; pinna apex oblique, with a large blunt lobe around the midrib. Inflorescence 150-250 cm long, with 50-100 spreading, slender branches. Flowers pale violet. Fruits ca. 2 cm in diameter, pinkish red; endocarp deeply pitted. (Borchsenius F., Borgtoft-Pedersen H. and Baslev H. 1998. Manual to the Palms of Ecuador. AAU Reports 37. Department of Systematic Botany, University of Aarhus, Denmark in collaboration with Pontificia Universidad Catalica del Ecuador)A
  • Stems 1-2 plus several suckers, to 10 m tall, 6?10 cm diam., armed with black, to 8 cm long spines, distally with old leaf sheaths. Leaves 4-6; sheath 60-80 cm long, armed with black, to 10 cm long spines; petiole 60-100 cm long, green, unarmed; rachis 210-260 cm long, unarmed; pinnae 17-24 per side, somewhat golden-green, in groups of (2-)3-4, in different planes, cuneate, 2.5-3 times as long as wide, lobulate praemorse at apex, glabrous adaxially, rough abaxially; middle pinnae 37-58 x 15-22 cm. Peduncle 110-170 cm long, 1-1.5 cm diam. at apex, with scattered brown, to 5 cm long spines; rachis 60-100 cm long, unarmed or with scattered spines like those on peduncle; rachillae 50-100, densely brown-spinulose; basal rachillae to 95 cm long, basally without flowers for up to 10 cm. 3-4 mm diam in the androgynous part. Staminate flowers pale violet, 1.5-2 mm long; anthers 0.6-0.8 mm long. Pistillate flowers 6-7 mm long; pistil glabrous. Fruit rose-red, globose, 16-22 mm diam; endocarp 15-19 mm diam., globose, deeply pitted. (Borchsenius, F. and Bernal, R. 1996. Aiphanes (Palmae). Flora Neotropica 70. pp 1-95)B

Materials Examined

  • COLOMBIA. Nariño: Rd. Junín- Altaquer, km 10, 1200 In, 4 Oct 1985 (fl, fr), Bernal & Galeano 895 (AAU, COL, K). VALLE: Río Chanchos, 300 m upstream from junction with Río Calima, Campment Calima III, 450-600 m, 16-19 Feb 1989 (fl), Bernal et al. 1521 (COL).
    ECUADOR, ESMERALDAS: Rd. Lita-San Lorenzo, km 8-18, 800-900 m, 14 May 1986 (fl, fr), Balslev, Borchsenius, et al. 62102 (AAU, NY, QCA); 13 Sep 1987 (juv), Skov & Borchsenius 64742 (AAU); 12 Nov 1987 (fl, fem fl, imm fr), Skov, Borchsenius, el al. 64819 (AAU, QCA); rd. Lita-Buenos Aires, km 12, 1400 m, Dodson &: Gentry 17582 (QCNE). (Borchsenius, F. and Bernal, R. 1996. Aiphanes (Palmae). Flora Neotropica 70. pp 1-95)B

Bibliography

    A. Borchsenius F., Borgtoft-Pedersen H. and Baslev H. 1998. Manual to the Palms of Ecuador. AAU Reports 37. Department of Systematic Botany, University of Aarhus, Denmark in collaboration with Pontificia Universidad Catalica del Ecuador
    B. Borchsenius, F. and Bernal, R. 1996. Aiphanes (Palmae). Flora Neotropica 70. pp 1-95
    C. World Checklist of Arecaceae