SPHAGNUM - PEAT MOSS

DISTINCTIVE CHARACTERISTICS:

1.   CELLS OF TWO TYPES
           a.   LARGE, EMPTY AND POROSE
       b.   SMALL, GREEN

2.   GENERALLY VERY LARGE PLANT IN COMPARISON TO OTHER
     MOSSES

3.   MOST COMMERCIALLY IMPORTANT
MOSS

     a.   ACIDIFY THEIR ENVIRON
MENT

      -   RETARDS DECAY SO MOSSES AND PLANTS
          GROWING IN THEM ACCUMULATE

      -  PEAT USED FOR FUEL AND GARDENING

4.   HISTORICAL USES OF SPHAGNUM

    
a.   DIAPER MATERIAL
      b.   BANDAGING FOR WOUNDS

5.   CLASSIFICATION

      1753 - CARL LINNAEUS LUMPED ALL SPHAGNUM INTO 
      ONE SPECIES

      SPHAGNUM PALUSTRE

FISSIDENS

1.  ONE OF THE EASIEST GENERA TO RECOGNIZE DUE TO:
   A.   FORM OF THE LEAVES
      -  SPLIT AND CLASPING THE STEM  

     B.  
INSERTION ON THE STEM

      -   DISTICHOUS LEAF ARRANGEMENT GIVES THE 
          LEAFY STEMS A FLAT APPEARANCE

2.   HABITATS-

    STREAM BANKS
   
SHADY LAWNS
   TREE BASES
    OPEN SOIL

POLYTRICACEAE

1.   HAS A DISTINCTIVE CHARACTERISTIC OF HAVING LAMELLAE ON
   THE COSTA

2.   THREE GENERA:

     ATRICHUM - FEW LAMELLAE

     MANY LAMELLAE

     POGONATUM - <1 CM TALL
     POLYTRICHUM
- TO 30 CM TALL



    LEUCOBRYUM

1.   DISTINGUISHING CHARACTERS

     a.   APPEAR AS WHITISH CUSHIONS
     b.   HAVE 2 DIFFERENT CELL TYPES

     SIMILAR TO SPHAGNUM

EPHEMERACEAE

   EPHERUM

   1.   LOTS OF PROTONEMA

   2.   FEW LEAVES

BRYACEAE VS FUNARIACEAE 

THESE ARE TWO FAMILIES THAT ARE COMMONLY FOUND, ON SOIL, IN PLANTERS

COMMON GENERA OF FUNARIACEAE

   PHYSCOMITRIUM - NEED CAPSULES

   FUNARIA - NEED CAPSULES

COMMON GENERA OF BRYACEAE

   BRYUM

   POHLIA

HOW DO YOU TELL THESE TWO GENERA APART?

   EASY WHEN CAPSULES ARE PRESENT

   DIFFICULT IF STERILE

FUNARIACEAE 1. CAPSULE URN HORIZONTAL

BRYACEAE -    1. CAPSULE URN PENDULANT

ASEXUAL REPRODUCTIVE STRUCTURES FOUND IN THE BRYACEAE BUT NOT FUNARIACEAE

   BULBILS, AXILLARY GEMMAE, TUBERS

  DENSE TOMENTUM FOUND IN SOME BRYACEAE BUT NOT IN THE
  FUNARIACEAE