EXTERNAL MORPHOLOGY AND ORGANOGENY 

 (INCLUDING TERATOLOGY). 



{See also (L) General Biology.) 



1000 (ieneral. 



1010 Vegetative Organs. 



lOoO Shoot. 



1100 Stem. 



1150 Leaf. 



1200 Root. 



1250 Thallus. 



1300 Tricbomes and Metamorphosed Members. 



1350 Reproductive Organs. 



1500 Flower and Inflorescence. 



1550 Fruit. 



1600 Seed. 



1650 Sporangia. 



1700 Vegetative Organs of Propagation. 



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



1800 Teratology. {See also L 1500.) 



1950 Methods. 



ANATOMY, DEVELOPxMENT, AND CYTOLOGY. 



{See also (L) General Biology.) 



2000 General. 



2010 Vegetative Organs. 



2020 Shoot. 



2040 Stem. 



20 GO Leaf. 



2080 Root. 



2100 Thallus. 



2120 Trichomes and Metamorphosed Members. 



2140 Reproductive Organs. 



2200 Flower and Inflorescence. 



2220 Perianth. 



2240 Androecium. 



2260 Gynoeceum. 



2280 Fruit. 



2300 Seed. 



2320 Sporangia (Cryptogamic). 



2340 Sexurd Organs (Cryptogamic). 



2360 Vegetative Organs of Propagation. 



2380 Embryology. 



2450 Anatomy and Development of Tissues. 



2500 Tegumentaiy Tissues (primary and secondary). 



2520 Secretory Tissues. 



2540 Mechanical Tissues. 



2560 Ground-Tissue. 



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



2G00 Secondary Vascular Tissues. 



