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Syntrichia ruralis, commonly known as twisted moss and star moss, [1] is a species of moss with a cosmopolitan distribution. It occurs in North America, the Pacific, Europe, Asia, the Middle East, North and South Africa, South America, and Australia. It grows in many types of climate, including the Arctic, boreal areas, temperate areas, and ...
The axis is a stem-like structure arising from the rhizoid, long, slender, monopodially branched. The each branch is extra axilliary arising form the base of a leaf. The leaves are sessile, oblong-ovate with entire margin and pointed apex. Each leaf is transversed by a mid rib. Leaves are born spirally around the axis.
Moss leaf under microscope, showing gemmae and a hair point (40x) Moss gametophytes have stems which may be simple or branched and upright (acrocarp) or prostrate (pleurocarp). The early divergent classes Takakiopsida, Sphagnopsida, Andreaeopsida and Andreaeobryopsida either lack stomata or have pseudostomata that do not form pores.
Biennial plants usually form a basal rosette of leaves in the first year and then flower and fruit in the second year. bifid Forked; cut in two for about half its length. Compare trifid. bifoliate (of a compound leaf) Having precisely two leaflet s, usually in a symmetrical pair, e.g. a leaf of Colophospermum mopane.
The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1] The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or ...
Aulacomnium heterostichum (synonym Arrhenopterum heterostichum), commonly called goose-egg moss or star moss, is a species of moss in the family Aulacomniaceae. [1] It occurs in two widely disjunct regions: eastern North America (the eastern United States and Canada) and eastern Asia (China, Korea, Japan and the Russian Far East). [1]
Looking up into the branch structure of a Pinus sylvestris tree Animation of zooming into the leaf of a Sequoia sempervirens (Californian Redwood). Plant morphology "represents a study of the development, form, and structure of plants, and, by implication, an attempt to interpret these on the basis of similarity of plan and origin". [4]
Haircap moss gets its name from the hairs that cover, or cap, the calyptra where each spore case is held [3]. Looking down, haircap moss has a star-shaped appearance due to its pointed leaves arranged spirally at right angles around a stiff stem . It is generally dark green in color and grows 4 – 20 cm tall [4]. The average life span of this ...