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A Japanese selection of P. lingua. I got it from John Trott and he grew a 'Broad Leaf' and a 'Narrow Leaf ' form. I have them both and as they have matured
they have become indistinguishable. Writing in the Asiatica catalogue in 2005, Barry Yinger wrote: "A rare Japanese form of a Japanese/Korean epiphyte/lithophyte. The fronds are very long and narrow, to 9" long and an inch wide, on a long petiole. The margin of the leaf has rounded lobes and is wavy. The name means "standing leaf dragon". USDA zones 8-10." Garry Landry writes: "Large Wavy Leaf Pyrrosia , P. lingua var tachyiba koryu is relatively easy to cultivate but slow growing. I have maintained this variety for many years and have never experienced any problems with its care. But, it is a slow grower compared to other lingua forms, but produces very large narrow fronds. At maturity, individual leaves can be 16 inches long and 1.5 inches wide. Their color is unusually dark though young fronds often are pale green until fully hardened. Occasionally some fronds show slight variegation though this usually disappears with age. The fronds are somewhat asymmetrical with no twisting of the blade but a very undulate margin and a wavy profile. It does produce fertile fronds with spores. I consider this variety to be uncommon in the trade and not easy to find. Plant Delights Nursery say: "Pyrrosia lingua 'Tachiba Koryu' is another of the many splendid Japanese selections of the Asian native tongue fern. The fronds emerge from a thin but stiff rhizome that runs just above the ground in most cases. The narrow, thick, leathery leaves are incredibly ruffled (like running your finger through a veggie shredder) and are held vertically above the rhizome. In well-drained sites, especially when growing on the side of a hill, the evergreen tongue fern can make a very nice colony, albeit far from invasive. In milder climates, they can also grow as epiphytes on rocks and trees as long as their base is in the soil. |
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| 8th June 2017 | ||
