136 W or s dell . — On the Genus Christisonia. 
Fig. 3. A tuberous portion (tb) of the root of C. subacaidis , Gardn., showing 
its attachment to the root of a Bamboo, x 2. 
Fig. 4 a. Transverse section through the central cylinder of the root of C. suba- 
caulis , Gardn. x 75. 
Fig. 4 b. Transverse section through the root of C. bicolor , Gardn. x = xylem ; 
ph — phloem ; sn = stone-cells ; ct = cortex, x 75. 
Fig. 5. Transverse section of a ‘ proteid-bundle ’ from a tuber of C. subacanlis, 
Gardn. x 100. 
Fig. 6. Haustorium of C.subacaulis, Gardn., penetrating root of Bamboo, x 1 30. 
Figs. 7, 8, 9. Portions of transverse sections through a branch of a haustorium 
of C. subacaulis , Gardn., showing mode in which suckers grow out from the inner- 
most cells and dissolve their way into the central cylinder (pc), x 260. 
Fig. 10. Section of a haustorium of C. subacaulis, Gardn., which has branched, 
the branches running parallel to the central cylinder of the host- root, x 65. 
Fig. 1 1 . Apex of a root of C. subacaulis, Gardn. rc — root-cap ; dt — dermatogen. 
x 100. 
Fig. 12. Longitudinal section of the stem and root of C. subacaulis , Gardn., 
showing the anastomosis of the bundle-system in the two organs (diagrammatic). 
Fig. 1 2 <t. Transverse section of the root and longitudinal section of the stem, 
showing the same (diagrammatic). 
Fig. 13. Gland from the stem of C. subacaulis, Gardn. 
Fig. 14. Single stoma in section. X260. 
Fig. 15. Flower of C. subacaulis , Gardn., seen from the front with part of the 
corolla removed, showing stamens and stigma. 
Fig. 16. Side view of flower. 
Fig. 17* Flower with the floral envelopes removed, showing the coherence of 
the stamens and the stigma. 
Fig. 18. Portion of a root of a species of Strobilanth, showing the attachment of 
several small plants of C. bicolor, Gardn. x 2. 
Fig. 19. Part of transverse section of the root of C. bicolor, Gardn., showing the 
origin of a rootlet, /r-- root-cap ; cc = central cylinder of parent- root. X 65. 
Fig. 20. Longitudinal section of a root of C. subacaidis, Gardn., showing the 
origin of a stem. / = first two young foliar organs ; cc — central cylinder of parent- 
root. x 50. 
Fig. 21. Part of transverse section of a root of C. bicolor, Gardn., showing the 
place of origin of a haustorium (hr), x 50. 
Fig. 22. Transverse section of the root of C. bicolor, Gardn., and root of 
Strobilanth, showing exogenous mode of origin of haustorium ; also the zone of 
starch-containing cells in cortex of parasite (slightly diagrammatic), x 100. 
Fig. 23. Part of a vessel from the stem of C. neilgherrica, Gardn. x 260. 
Fig. 24. Sieve-tube and companion-cell from the stem of C. neilgherrica, Gardn. 
x 260. 
Fig. 25. Stem and inflorescence of C. neilgherrica, Gardn. 
Fig. 26. Cortical cell from the root of C. subacaidis, Gardn., showing the fungus 
growing on one of its walls, x 260. 
Fig. 27. An intercellular space with the fungus forming conidia. x 260. 
