FIG. 12. — A-H in A revision of the indusiate scaly tree ferns (Cyatheaceae, Cyathea subgen. Alsophila sect. Alsophila) in Madagascar, the Comoros and the Seychelles

Main Authors: Janssen, Thomas, Rakotondrainibe, France
Format: info Image Journal
Terbitan: , 2008
Subjects:
Online Access: https://zenodo.org/record/5190456
Daftar Isi:
  • FIG. 12. — A-H, Cyathea acutula (R.M.Tryon) Janssen & Rakotondr. var. acutula; A, leaf scars and trunk surface; B, pinna abaxially with a fragment of the rachis, sori only partly indicated; C, habit (left: common form; right: form of the Manongarivo massif with dense pinnules near the petiole bases clustered above the trunk apex); D, basal part of the leaf (from the petiole base up to the first pinna pair), lateral view; E, pinnules abaxially with a fragment of the costa, crenate form; F, pinnules abaxially with a fragment of the costa, common form; G, sori with a fragment of the costula carrying acaroid scales; H, scale from the petiole base; I-K, C. acutula var. deltoidea Janssen & Rakotondr.; I, leaf scars and trunk surface; J, basal part of the petiole with contiguous deltoid scales; K, scales from the petiole (left: from the base of the petiole; right: from about 20 cm above the base of the petiole); L, C. acutula var. rufescens Janssen & Rakotondr., scales from the base of the petiole of two different specimens. A, B, D, F-H, Janssen et al. 2849 (P); C, uncollected, photographs at P; E, Rakotondrainibe 4124 (P); I, Janssen et al. 2496 (P); J, K, Rabarimanarivo 74 (P); L (left), Rakotondrainibe et al. 5039bis (P); L (right), Rasolohery 108 (P). Scale bars: A, E, F, I, 1 cm; B, D, J, 5 cm; C, 1 m; G, H, K, L, 0.1 cm.
  • Published as part of Janssen, Thomas & Rakotondrainibe, France, 2008, A revision of the indusiate scaly tree ferns (Cyatheaceae, Cyathea subgen. Alsophila sect. Alsophila) in Madagascar, the Comoros and the Seychelles, pp. 221-376 in Adansonia (3) 30 (2) on page 267, DOI: 10.5281/zenodo.5190422