Pronephrium borneense
Content
Distribution
Asia-Tropical: Borneo present (Sabah present, Sarawak present)
Malesia: Borneo (Sarawak, Sabah).
Notes
The type is a single fertile frond. Living plants of Jermy 13072, cultivated at Kew, resemble the type closely and have sterile and fertile fronds of similar size; the above description is based on the type and cultivated plants. Dried specimens of Jermy 13078, also from G. Mulu, are larger, with stipes 30 cm long and dimorphous fronds to 30 cm long with 6 pairs of pinnae; sterile pinnae to 8.5 x 2.8 cm (veins 7 pairs), fertile to 4.5 x 1.6 cm.