X 
Figures. 
i 
Index. 
1 8. Celastrus articulatus (Lee) 
9, 20. Catalpa Kaempferi (Lee) 
1. Graphs showing relative absorption of mineral nutriments in parts 
per ioo by healthy and diseased lemons (O. Butler) 
2. Cross-section through edges of an almond-shaped area (gummosis) 
(O. Butler) 
3. Cross-section through sickle of pathognomonic tissue (O. Butler) . 
1. Base of leaf-trace of Thamnopteris (Sin nott) . 
2. Base of leaf-trace of Danaea (Sinnott) 
3. Base of leaf-trace of Gleichenia Speluncae (Sinnott) 
4. Base of leaf-trace of Gleichenia circinata v. macrophylla (Sinnott) 
5. Leaf-trace and petiolar bundle of the Loxsoma or Dennstaedtia type 
(Sinnott) 
6. Base of leaf-trace of Plagiogyria (Sinnott) 
7. Base of a leaf-trace of the Onoclea type (Sinnott) 
8. Petiolar bundle of the Onoclea type (Sinnott) .... 
9. Base of leaf-trace of Cyathea Macarthuri (Sinnott) 
10. Petiolar bundle of Clepsydropsis (Sinnott) 
11. Petiolar bundle of Asterochlaena (Sinnott) 
1. Schizaeopsis expansa (Berry) 
1. Compound rays in the lower Dicotyledons (Bailey) 
1. Hottonia palustris (Prankerd) 
Diagrams 1-6. Types of Stele found in Hottonia (Prankerd) 
2. Part of a transverse section across the subterranean part of the 
rhizome (Prankerd) 
3. Part of a transverse section across the aquatic stem near the base of 
the inflorescence (Prankerd) 
4. Longitudinal section of stem near the base of the inflorescence 
(Prankerd) . 
5. Transverse section across the base of the inflorescence of Hottonia 
inflata (Prankerd) 
6. Xylem, phloem, and protoxylem (Prankerd) .... 
1-3. Arrangement for using Blades of Safety Razors in the Microtome 
(Bentley). . 
1-3. Sections of spermatid (Wilson) ....... 
1. Traquairia Carruthersii (R. Scott) ....... 
2. Bothrodendron (R. Scott) . . . . . . . . 
3. Traquairia Carruthersii (R. Scott) ...... 
4. Traquairia Spenceri (R. Scott) . . . . . . . 
1. Salvinia natans (Yasui) ......... 
1. Single leaf of Suaeda maritima (Delf) 
2. Outline obtained by placing leaves of Suaeda side by side (Delf) 
3. Shoot of Salicornia annua (Delf) 
4. Internode of a shoot of Salicornia annua (Delf) . . • 
5. Short glass rod and celluloidin film (Delf) ..... 
6, 7. Outlines of films obtained from shoots of Salicornia (Delf) 
8. Curves showing transpiration (Delf) ...... 
9. Curves showing loss of water by weight (Delf) .... 
10. Curves showing relative transpiration during withering (Delf) 
11. Outline of stomata from a shoot of Salicornia (Delf) 
2,13. Outline drawings of stomata of Salicornia annua (Delf) . 
Diagrams 1-5. Anatomy of the Osmundaceae (Gwynne-Vaughan) 
1. Part of a transverse section of Selaginella Wildenovii after maceration 
(Bancroft) 
2. Transverse and longitudinal sections of xylem elements of Marattia 
laxa (Bancroft) 
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