An aerophore is adjacent to the gland, is oval in shape and proximal to the gland on the pinna base.
A small aerophore is located immediately proximal to each gland.
The aerophore immediately adjacent to each gland (Fig.
In addition to the gland, there is a distinctive aerophore which tends to be a relatively small oval patch adjacent to the gland at its border with the rachis (Fig.
An aerophore is associated with the pinna base, and is clearly separate from the gland.
85% as long as the longest ones, pinnae petiolulate (1-2 mm), slightly curved forward, apices long-acuminate, margins narrowly hyaline, finely serrulate, very slightly revolute; aerophores tuberculiform; rachises reddish brown to stramineous, adaxially grooved, moderately scaly, scales similar to those of petioles but slightly smaller; costae reddish brown to stramineous, adaxially grooved, glabrous, abaxially densely scaly, the scales appressed to the laminae, 0.
7 cm long, linear-lanceolate, mostly broadly adnate (except the basalmost pinnae), bases somewhat unequal, apices acute, margins cartilageneous, serrulate, not revolute; aerophores absent; rachises dark reddish brown, grooved adaxially, sparsely scaly, the scales similar to those of the petioles but smaller, to 8 x 0.
8 mm, loosely appressed, ovate, tan, erose to ciliate; aerophores at pinna bases tuberculiform, dark; costae adaxially stramineous, grooved, moderately scaly, the scales similar to those of the rachis but smaller, abaxially stramineous, densely scaly, the scales similar to the large rachis scales; blades coriaceous, drying pale olive green, slightly paler abaxially, adaxially sparsely scaly, the scales 0.
85% as long as the longest ones, pinnae petiolulate (1-3 mm), falcate, apices long-acuminate, margins hyaline, serrulate, slightly revolute; aerophores tuberculiform; rachises adaxially dull brown, grooved, glabrous, abaxially dark reddish brown to atropurpureous, densely scaly, scales 1-3 x 0.
30 x 15 cm, deltate, 1-pinnate, distal two pinna pairs basally somewhat adnate; sterile pinnae 7-9 pairs, to 8 cm x 16 mm, the proximal pinnae the longest, lanceolate with elongate, falcate apices, margins finely serrate, very narrowly cartilaginous, not revolute; aerophores tuberculiform; rachises dark reddish brown, grooved adaxially, sparsely scaly, the scales fibrillose, 0.