Gymnosperms

The gymnosperms of the Malay Peninsula, as documented by H. N. Ridley in 1911, comprise three groups—Coniferae, Gnetaceae, and Cycadeae—none of which forms a conspicuous feature in the regional flora, though several species hold notable ecological, economic, or ethnobotanical interest [1, p. 53]. Ridley, then Director of the Singapore Botanic Gardens, catalogued eight conifer species across three genera, more than ten species of Gnetum (three of which he described as new), and two species of Cycas, drawing on his own herbarium and the collections of Curtis, Hullett, and Kelsall [1, pp. 53–68].

Biogeographical Origins and Distribution

Ridley proposed that the peninsula’s conifers were colonised from two distinct directions: lowland taxa from the north via the Himalayan corridor, and montane taxa from the east via Borneo and the Australasian region [1, p. 53]. In the low country up to nearly 1,000 feet, only three species occur—Podocarpus wallichianus, P. neriifolius, and P. polystachyus—the first two being natives also of the Khasia and tropical Himalaya [1, p. 53]. The mountain conifers, including Agathis, Dacrydium elatum, D. falciforme, D. beccarii, and Podocarpus cupressinus, all occur in Borneo and other islands to the east but are absent from the Himalayan or northern region [1, p. 53]. Ridley noted that D. beccarii, a dwarf bushy tree of fifteen feet or less, appears to replace D. elatum in the southern part of the peninsula at elevations of 4,000 to 5,800 feet [1, p. 56]. The genus Phyllocladus, represented by P. hypophyllus, is known from New Zealand, Tasmania, the Philippines, and New Guinea, and was expected but not yet confirmed in the peninsula [1, p. 53].

Economic and Ethnobotanical Significance

Several gymnosperm species were of practical use to local communities. Agathis loranthifolia, known locally as “Poko Damar Minyak,” is described as a lofty straight-stemmed tree with flaky bark, very resiniferous, recorded from Penang Hill at 2,500 feet, Gunong Tahan, and Maxwell’s Hill [1, p. 54]. Cycas rumphii, called “Pakis Laut” on account of the circinate vernation of its young leaves, yields a starch from the trunk, and its young leaves are eaten as a potherb [1, p. 68]. Ridley observed that this species, which inhabits sandy spots near the sea, had probably been much more abundant on the coasts but had disappeared from many sites owing to clearance for coconut cultivation, persisting only in gardens or isolated inland forest locations such as Kamuning [1, p. 68]. The male cone of C. rumphii emits a strong odour of lady-birds, and its pollen is described as strongly narcotic [1, p. 68]. Among the Gnetum climbers, the bark is tough and used for tying by the Malays, while G. gnemon, known as “Maninjau,” is cultivated in Penang and Singapore for its pleasantly tasted nut-like seed, said to have been introduced from Java [1, pp. 59–60]. G. edule produces a solitary seed two inches long and one inch through, with a corky warty surface, matching Rumphius’s Funis gnemoniformis [1, p. 64].

Taxonomic Scope and New Descriptions

Ridley’s treatment included three new species of Gnetum: G. penangense, G. longispica, and G. tenuifolium [1, pp. 63–66]. He also clarified the distinction between G. gnemon and G. brunonianum, which had been confused in the Flora of British India, noting that the former is a tree of sixty feet or more while the latter is a small shrub of two to five feet [1, p. 61]. The Gnetum climbers are generally stout woody lianes that attain a great size and form conspicuous features in the forests [1, p. 59].

Research and Documentation

Ridley’s 1911 article in the JSBRAS constitutes the principal floristic treatment of the peninsula’s gymnosperms in the Society’s literature. It is a standard colonial-era synthesis, grounded in the Singapore Botanic Gardens herbarium and the published iconography of Blume, Rumphius, and Wallich [1, pp. 53–68]. The work reflects the priorities of its era: systematic description, biogeographical inference, and the recording of local names and uses. No subsequent article in the archival record addresses the group at comparable scope, leaving Ridley’s treatment as the foundational reference for the subject.

MBRAS Sources

• H.N. Ridley (1911). The Gymnosperms of the Malay Peninsula. JSBRAS 60: 53–68

References

1. H.N. Ridley (1911). The Gymnosperms of the Malay Peninsula JSBRAS 60: 53–68.