Orthiopteris campylura var. campylura

Luong, Thien Tam, Hovenkamp, Peter H. & Sosef, Marc S. M., 2015, Revision of the fern genus Orthiopteris (Saccolomataceae) in Malesia and adjacent regions, PhytoKeys 53, pp. 39-71 : 47

a. Orthiopteris campylura var. campylura Figs 3a, b , 6d

Description.

Sori protruding from the margin on distinct lobes, in one plane with lamina wings, 0.9-1 × 0.5-0.8 mm, symmetric, narrowly funnelform-obovate, widest at mouth; inner indusium brown, firm, equal to outer indusium, sometimes longer, apex similar to outer indusium; outer indusium truncate or obtuse, shallowly undulate; sporangia 7-12 per sorus, capsule globose and rounded at apex, gradually narrowed toward base, indurated annulus cells 15-20, clearly unequal; spores in polar view 35-45 µm, in lateral view 30-33 µm.

Distribution.

Philippines (Leyte, Luzon, Mindanao, Negros), Moluccas (Seram), Papua New Guinea (Manus).

Discussion.

Although in the shape of inner and outer indusium shape this species resembles Orthiopteris campylura var. kingii , the sori are not reflexed but usually flat even when dried. The distribution center of this variety appears to be in the Philippines.

Figures

Figure 3. Sori of Orthiopteris seen from abaxial side. a, b Orthiopteris campylura var. campylura (Cuming 119, MICH) c Orthiopteris campylura var. kingii (Brass 12941, MICH) d Orthiopteris trichophylla (Brass 12239, L) e Orthiopteris tenuis (Smith 9154, L) f Orthiopteris tenuis (Smith 7274, L) g Orthiopteris campylura var. caudata (Carr 12518, L) h Orthiopteris cicutarioides (Carr 13257, K) i, j Orthiopteris campylura var. insularis (Braithwaite 4110, L) k Orthiopteris tenuis (small segment) (Degener 14648, L) l Orthiopteris ferulacea (Smith 8932, K) m, n Orthiopteris firma (Schlechter 14890, L) o, p Orthiopteris campylura var. laxa (Mueller s. n., L) q, r Orthiopteris henriettae (Lam & Meeuse 5892, L) s Orthiopteris henriettae. t Orthiopteris samoensis (Reinecke 97 a, L) u, v Orthiopteris samoensis (Vaupel 312, L). All scale bars 1 mm, oi = outer indusium, ii = inner indusium.

Figure 6. Orthiopteris spores. a, b Orthiopteris firma (Guillaumin & Baumann-Bodenheim 10318, L) c Orthiopteris tenuis (Smith 9154, L) d Orthiopteris campylura var. campylura (Elmer 11717, L) e Orthiopteris campylura var. caudata (Ridsdale 30654, L) f Orthiopteris henriettae (Lam & Meeuse 5892, L) g, h Orthiopteris samoensis (Sledge 1563, L). All scale bars 10 µm.