OF А ВЕМАВКАВГЕ UREDINE. 151 
Fig. 3. А and В. Two views of same stem attacked, showing localized hypertrophy. In teleutosporic 
stage. Nat. size. 
Fig. 4. ZEcidiospores. х 350. 
Fig. 5. Vacuolated zecidiospore, and isolated peridial cell. х 350. 
Fig. 6. Aicidiospore germinated ; sterigmatous branches still small. х 350. 
Fig. 7. Ditto, with sterigmatous branches fully developed. х 350. 
Fig. 8. Teleutospore, showing commencing germination. х 350. 
Fig. 9. Teleutospore completely germinated, bearing three sporidia, all of which have emitted germ- 
tubes while still attached to promycelium. х 350. 
Fig. 10. Showing abnormal promycelial development. At (b) abnormal formation of sporidium. х 350. 
Fig. 11. End of promycelium bearing three sporidia. х 350. 
Fig. 12. Promycelium bearing a sporidium which has formed a secondary sporidium while still attached. 
x 350. | 
Fig. 13. Leaf showing several points of attack ; wcidial stage. Маф. size. 
Fig. 14. Showing petiole generally attacked, with much hypertrophy and distortion ; mostly in æcidial 
; stage, but showing commencing teleutospore formation. Nat. size. 
Fig. 15. Section through the peridium containing teleutospore bed, with elongated stalks (basidia). 
x 140. 
Fig. 16. Section through peridium showing commencing teleutospore formation; wcidiospores on either 
side. x140. 
Fig. 17. Peridial cells seen flat. х 350. 
PLATE L. 
Fig. 1. From photograph showing shoot gathered at Sairi largely attacked in æcidial stage ; the result of 
attack by æcidiospores. Nat. size. 
Fig. 2. Portion of section through attacked stem from central pith, 
Fig. 3. Portion of section through peridium containing teleutospores. X 350. 
Fig. 4. Section through peridium in æcidial stage; short layer of basidia as compared with fig. 15. 
x 140. 
showing mycelial invasion, х 350. 
