EXTERNAL MORPHOLOGY AND ORGANOGENY 

 (INCLUDING TERATOLOGY). 



{See also (L) General Biology.) 



1000 General. 



1010 Vegetative Organs. 



1050 Shoot. 



1100 Stem. 



1150 Leaf. 



1200 Root. 



1250 Thallus. 



1300 Trichomes and Metamorphosed Members. 



1350 Reproductive Organs. 



1500 Flower aud Inflorescence. 



1550 Fruit. 



1600 Seed. 



1650 Sporangia. 



1700 Vegetative Organs of Propagation. 



1750 Alternation of Generations. {See aho L 2550.) 



1800 Teratology. {See also L 1500.) 



ANATOMY, DEVELOPMENT, AND CYTOLOGY. 



{See also (L) General Biology.) 



2000 General. 



2010 Vegetative Organs. 



2(;20 Shoot. 



2040 Stem. 



2060 Leaf. 



2080 Root. 



2100 Thallus. 



2120 Trichomes and Metamorphosed Members. 



2140 Reproductive Organs. 



2200 Flower and Inflorescence. 



2220 Perianth. 



2240 Androecium. 



22G0 Gynceceum. 



2 2 SO Fruit. 



2o()0 Seed. 



2320 Sporangia (Cryptogamic). 



2340 Sexual Organs (Cryptogamic). 



2360 Vegetative Organs of Propagation. 



2380 Embryology. 



2450 Anatomy and Development of Tissues. 



2500 Tegumentary Tissues (primary and secondary). 



2520 Secretoiy Tissues. 



2540 Mechanical Tissues. 



2560 Ground-Tissue. 



2580 Primary Vascular Tissues (including works on the Stele). 



2600 Secondary Avascular Tissues. 



