Research Article

Numerical Taxonomy of Species in the Genus Mallomonas (Chrysophyta) from China

Table 2

Characters and status used in the study.

No. Characters and status

1Scale small (1), no (0)
2Scale larger (1), no (0)
3Scale oval or elliptical (1), no (0)
4Scale round (1), no (0)
5Scale symmetrical (1), no (0)
6Large pores on the scale observed with LM (1), absent (0)
7Body scale with subcircular peculiar appendix (1), absent (0)
8Dark twisting “vermiform” on the scale (1), absent (0)
9Scale with appendages “cyathi” (1), absent (0)
10Scale with scattered cavities of the thickened ridges (1), no (0)
11Scale consist two or more longitudinal rows of circular unpatterned areas (1), absent (0)
12Scale consist a single row of large pits along the central longitudinal axis (1), absent (0)
13Continuous submarginal ribs (1), absent (0)
14Submarginal parallel ribs on the anterior scale (1), absent (0)
15Anterior submarginal rib with a wing-like structure (1), absent (0)
16Distal edges of scales convex (1), no (0)
17Distal edges of scales concave (1), no (0)
18Small pores on the distal scale (1), absent (0)
19Densely spaced papillae on the distal scale (1), absent (0)
20Two-lateral ribs and not connected on the scale (1), absent (0)
21V-rib on the scale (1), absent (0)
22A flower like pattern in the angle of V-rib (1), no (0)
23Base of the V-rib broadly U-shaped (1), no (0)
24V-rib with large proximal hood (1), absent (0)
25Arms of V-rib bend (1), no (0)
26Arms of the V-rib completely encircle (1), no (0)
27A secondary layer on scale (1), absent (0)
28Body dome (1), absent (0)
29Dome of body scale very broad (1), no (0)
30Scale dome with parallel striation (1), absent (0)
31Dome with strongly U-shaped ribs (1), absent (0)
32A curved serrated bristle attached to dome (1), absent (0)
33Shield with labyrinthic ornamentation (1), absent (0)
34A row of minute holes on the shield (1), absent (0)
35A row of circular pits on the shield (1), absent (0)
36A dense reticulum of ribs on the shield (1), no (0)
37Regularly papillae on the shield (1), absent (0)
38A developed reticulum on distal 2/3 of the shield (1), absent (0)
39Secondary structure on the shield and flange (1), absent (0)
40Small pores on the secondary layer of shield (1), absent (0)
41Large pores on the secondary layer of shield (1), absent (0)
42A network of circular holes on secondary layer of shield (1), absent (0)
43An irregular reticulation of ribs on secondary layer of shield (1), no (0)
44Parallel transverse ribs on secondary layer of shield (1), absent (0)
45Transverse rib connected run perpendicular (1), no (0)
46Cyst ovoid (1), no (0)
47Cyst rhomboidal (1), no (0)
48Cyst with pores (1), absent (0)
49Cyst with rims (1), absent (0)
50Prominent ribs on the anterior flange (1), absent (0)
51Posterior flange ornamented (1), no (0)
52Posterior flange covered with reticulation of pores (1), absent (0)