Ini adalah tembolok Google' untuk http://www.ohio.edu/plantbio/vislab/moss/splachnum.html. Gambar ini adalah jepretan laman seperti yang ditampilkan pada tanggal 18 Nov 2011 14:25:41 GMT. Sementara itu, halaman tersebut mungkin telah berubah. Pelajari Selengkapnya
Berikut adalah frasa penelusuran yang disorot: splachnum
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Habitat: Found on the dung of large herbivores, usually moose or reindeer. Sometimes found on decaying wood.
Distribution: Throughout areas of the far Northern Hemisphere: Canada, the northern United States, Alaska, China, northern Europe, and the Arctic.
Gametophyte: Pale to yellow green tufts. Large, broad leaves are serrate in S.rubrum, but more lanceolate shaped in S. luteum, with spinose margins. The single costa ends at the leaf tip or just below it. The cells are large, rectangular, and smooth with thin walls.
Sporophyte: Splachnum is dioecious , male and female reproductive organs are on separate plants. The seta is often very long because it continues to grow even after spores have been dispersed. The apophisis can be red or yellow with a small yellowish capsule on top. The sixteen peristome teeth are closed when moist, but fold open when dry. The apophysis in this species is extraordinarily large and flattened out into an inverted cup-like structure, resembling, as its common name suggests, tiny umbrellas. The apophysis has stomata on the upper surface, and is made up of a spongy, mesophyll -like material. It has been suggested that Splachnum represents the highest level of sporophyte development among bryophytes because of this well developed structure.
Dispersal: Splachnum has become adapted for dispersal by flies visiting the dung on which it grows. The sporophyte mimics a flower: from the enlarged red or yellow apophysis, to the large and colorful peristome teeth which open to reveal the columella which holds spores out for visiting insects. The spores stick to the insect in clumps, which is another adaptation for insect dispersal.
Literature Cited
Crum, Howard. Mosses of the Great Lakes Forest. 1973. University of Michigan. Ann Arbor, Michigan.
Muma, Robert. "Splachnum rubrum". Leatherwood Trail Website. http://wmuma.com/moss/paintings/mosspics11.html (May 18, 2003)
Written by Kristyn Robinson 2003
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