Tugas Taksonomi Tumbuhan

Name : Bella Rhea Lavifa Sanjaya

NIM  : 120210153038

Class : A Inter

TAXONOMY OF PLANT

Sphagnum warnstorfii

    

Classification

Kingdom         : Plantae

Divisi               : Bryophyta

Class                : Bryopsida

Subclass          : Sphagnidae

Order               : Sphagnales

Family             : Sphagnaceae

Genus              : Sphagnum

Species            : Sphagnum warnstorfii

Description :

·           Red, often wine color, mixed with green leaves.

·           Branch leaves are five-ranked (alligned in rows).

·           Grows in more calcareous habitats than other Sphagna.

·           The plants are  aquatic,  growing  about  the margins of small lakes and ponds or growing on dripping rocky banks.

·           The pH of water in  which Sphagnum grows ranges  from  3.7  to  4.9.  Since this  water accumulates year after year to  form peat and hence the name peat moss.

·           The size of the plant varies from a few inches to  a maximum of 7 inches.

·           The plant is erect, branched  and differentiated into  stem  and  the  leaves.

·           The colourless rhizoids  are  formed  at  the  base but soon disappear.  Hence, there  are  no  rhizoids  on mature gametophores.

·           At the  apex of the  gametophore there  are a number of short branches densely crowded in a cluster, called coma.

·           In the posterior part of the stem, the branches arise in tufts  in the axil of every fourth leaf and in each tuft there are 3-8 branches.

·           At intervals,  one of the  branches in the  tuft grows and fonns an apical cluster of branches like  the  main stem.  This  is  called  an innovation.  It helps in  vegetative propagation by separating from the main branch.

·           When first  fonned,  the  leaves  are in  three vertical  rows  or  three  ranked.  Later  the arrangement changes to  2/5.

·           The leaves  lack  a  midrib an  exception  to mosses.