Main characteristics of Rhodophyceae ( Red algae)
The rhodophyceae is called red algae, as it imparts often a red colour to the thallus. There are about 400 genera and 4…
The rhodophyceae is called red algae, as it imparts often a red colour to the thallus. There are about 400 genera and 4…
The members of Phaeophyceae are popularly called brown algae. The brown colour of this group of algae is due to the posses…
These are yellow green algae which contain chlorophyll a but lack chlorophyll b. Instead of chlorophyll b they possess ch…
Chlorophyceae forms a major class of algae which is characterized by green plastids called chloroplast. This plastids call…
The taxonomic position of blue green algae (cyanobacteria /cyanophyceae) is a thing of controversy. they show resemblance…
Algae possess diverse characters in their pigments, nature of reserve food, nature of cilia etc. According to these morpho…
Algae possess diverse characters in their pigments, nature of reserve food, nature of cilia etc. According to these morpho…
Permanent Tissue: Permanent tissues are those tissue which have lost the power of cell division. Cells of permanent tissue…
In the primary structure of stem, root and leaves, the conductive tissue xylem and phloem are grouped together. A group of…
Stomata are minute pores which occur on epidermal surface of leaves and also some herbaceous stems. Each stoma is guarded by…
Bryophyta (Gk bryon= moss, phyton=plant, represent a group of plants that includes liverworts, hornworts and mosses growing…
Taxonomic Position of Lycopodium Division: Lycophyta Class: Lycopsida (Eligulopsida) Family: Lycopodiaceae Order: Ly…
• Mostly Shade loving plants • About 200 species • Sporophytic plant body consists of slender creeping rhizhomes, which g…
1. Epidermis: single layered with cuticle and stomata 2. Cortex: 3 layers in L.cerenuum 3. Outer and inner cortex is pa…
Stobilus is globular and sporophylls are arranged spirally and closely. Sporophylls bear sporangia on their adaxial s…
•Spores germinate to form tiny peg shaped short lived gametophyte. •It depends on fungus for food. •The gametophyte bear…
Lycopodium exhibits heteromorphic alternation of generation as sporophyte and gametophyte are morphologically dissimilar. …
Psilotum is also known as “Whisk ferns” Taxonomic position of Psilotum: Division: Pteridophyta Class: Psilopsi…
1.The plant body is the sporophyte 2. Less differentiated plant body 3. Consists of Subterranean rhizome and aerial shoot…
Synangium is a trilocular or three chambered, spore bearing structure in Psilotum . It is considered as a fusion product o…
Begin the description with epidermis onwards: Psilotum stem C.S 1. Epidermis is single layered with stomata and cuticle…
Like the sporophyte the gametophyte also branches repeatedly. The prothallus is devoid of chlorophyll. • The gametophy…
Homomorphic alternation of generation as rhizhome and gametophyte are look alike. Steps in Life Cycle of Psilotum 1. Psi…
The stele is defined as a central vascular cylinder, with or without pith. Endodermis is the boundary between cortex and st…
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