Genus Entodon

, the representative genus of the shiny sub-gang gray-eye line, the plant body is flat by the leaves, with a distinct luster. A needle-shaped or long egg shape with short double ribs. Leaf cells are narrow and long, horn cells are mostly square. Sporesupright.double layer, the outer tooth layer has stripes or warts, the inner tooth layer subst film is low, the tooth flake is narrow, toothless hair. The number of chromosomes is
n x 11
.genus is divided into
2
, about 70
kinds
species. The subsome is mostly flat, yellow-green, or light-green.handle orange red or purple. The ring belt is not differentiated.the base of the tooth flap of the outer tooth layer has horizontal and oblique stripes, sometimes with warts on the upper part. Thin smooth. It is located in South America, Africa, Oceania and southeast Asia. Yellow handle sub-species plants are more upright, dark green.handle yellow. Spore hoist ring belt. The outer tooth flakes are usually dense, sometimes striped and smooth, and are distributed in northern Africa, Europe, Asia, and North America. There are about 30 species
chinese
plants. Most of the species belong to the genus lysus.in
of
19th century, this genus was once part of the broad flat genus.
1845
,
C
. Miller added more than 10 species
five continents
a genus of ferns. Later,
W
.
P
． Schimpel also published the
Cylindrothecium
genus, which became a
-
-century genus in the late 19th century. Until
1907
,
V
.
F
． In the first edition of the Botany Natural System, Broterus initially established the concept of today's genus.
W
．
R
． Buck believes that the geographical distribution of the two sub-genus is related to plate drift. They are more active in evolution, assuming that the
(hypna-ceae
) plants are their ancestors. In the early evolutionary period, ferns may be separated from other ferns and differentiated in morphological structure, and together with the genus associated with their kinship, the genus of the ferns became a special section of the gray slugs (
Hypnobryales
). According to Barker, the genus thygota may have originated in the Gonwana ancient land.