EXTERNAL MORPHOLOGY AND ORGANOGENY 

 (INCLUDING TERATOLOGYJ. 



(See also (L) General Biology.) 



1000 General. 



1010 Vegetative Organs. 



1050 Shoot. 



1100 Stem. 



1150 Leaf. 



1200 Root. 



1250 Thallns. 



1300 Triclioines and Metamoi'phosed Members. 



1350 Reproductive Organs. 



1500 Flower and lullorescence. 



1550 Fruit. 



1600 Seed. 



1650 Sporangia. 



1700 Vegetative Organs of Propagation. 



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



1800 Teratology. {.See alio L 1500.) 



1950 Methods. 



ANATOMY, DEVELOPMENT, AND CYTOLOGY. 



(See also (L) General Biology.) 



2000 General. 



2010 Vegetative Organs. 



2020 Slujot. 



2040 Stem. 



2060 Leaf. 



2080 Root. 



2100 Tiuilhis. 



2120 Triclujuies and Metamorphosed Members. 



2140 Reproductive Organs. 



2200 Flower and Li florescence. 



2220 Perianth. 



2240 Andracciuni. 



2260 Gynccceum. 



2280 Fruit. 



2300 Seed. 



2320 Sporangia (Cryptogamic). 



2340 Sexual Organs (Cryptogamic). 



2360 Vegetative Organs ot Propagation. 



2380 Embryology. 



24.o0 Anatomy and Development of Tissues. 



2500 Tegumeutary Tissues (primary and secondary). 



2520 Secrctoiy Tissues. 



2540 Mechanical Tissues. 



2560 Cj round-Tissue. 



2580 I^iimary Vascular Tissues (including Avorks on the Stele), 



2600 Secondary Vascular Tissues. 



