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Linnaeus first gave the hart's-tongue fern the binomial Asplenium scolopendrium in his Species Plantarum of 1753. [4] The Latin specific epithet scolopendrium is derived from the Greek skolopendra, meaning a centipede or millipede; this is due to the sori pattern being reminiscent of a myriapod's legs. [5] [6]
Because of its rarity, censuses of the fern in this region of New York have been reported periodically since 1916. [15] In 1989, this species was declared as endangered in the United States. [4] The most thriving site for hart's tongue through about 1925 was not Glacier Lake, but a second similar lake about 2 miles (3.2 km) due east. [18]
Asplenium rhizophyllum, the (American) walking fern, is a frequently-occurring fern native to North America. It is a close relative of Asplenium ruprechtii [ 2 ] (syn: Camptosorus sibiricus ) which is found in East Asia and also goes by the common name of "walking fern".
N Asplenium rhizophyllum – walking fern N Asplenium ruta-muraria – wall-rue N Asplenium scolopendrium var. americanum – American Hart's-tongue fern Special Concern
Centered around the former plunge pool of a large ice age-era waterfall. Harbors the largest U.S. population of the endangered American hart's tongue fern. [73] Clay Pit Ponds State Park Preserve: New York City: Richmond: 265 acres (107 ha) 1977 [74] 25,343
Another, between A. pinnatifidum and the tetraploid American hart's-tongue fern (A. scolopendrium var. americanum) yielded peculiar specimens with a long blade, similar in texture and doubled indusia to the hart's-tongue fern, but lengthened and tapering to a point, and not lobed except for two surprisingly large auricles at the base. [32]
Lygodium palmatum is the only species of its genus native to North America.Unlike most species in the genus, this one, called the American climbing fern, [2] Hartford fern (after Hartford, Connecticut), or Alice's fern, is extremely hardy in temperate zones (other species tolerant of temperate climates include New Zealand's Lygodium articulatum and the Japanese Lygodium japonicum, which is now ...
Blounts Wood (TQ818929), 3.21 hectares, is a rectangular wood principally comprising Hornbeam, Ash and Hazel. It has a rich flora including Wild Service, Crab Apple, and hart's tongue fern. The Shenfield to Southend Railway forms the southern boundary of the wood. Crabtree Wood (TQ833935), 1.55 hectares, a Hornbeam wood around a small steep ...