2 



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 Thallu';. 



1300 Trichoiiies and Metamorphosed Members. 



1350 Reproductive Organs. 



1500 Flower and Inllorescence. 



1550 Fruit. 



1600 Seed. 



1650 Sporangia. 



1700 A'cgetativc Org'aiis of Propagation. 



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



leOO Teratology. {See also L 1500.) 



ANATOMY, DEVELOPMENT, AND CYTOLOGY. 

 {See also (L) General Biolog'v.) 



2000 (ionoral. 



2010 Vegetative Organs. 



2020 Shoot. 



2040 Stem. 



2060 Leaf. 



2080 Root. 



2100 Thallus. 



2120 Tiiehonies and Metaniori)hosed Members. 



2140 Reproductive Organs. 



2200 Flower and Inflorescence. 



2220 Perianth. 



2240 Androecium. 



2260 Gynoeceum. 



22.S0 Fruit. 



23(10 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 Secretory Tissues. 



2540 Mechanical Tissues. 



2560 Ground-Tissue. 



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



2600 Secondary Vascular Tissues. 



