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EXPLANATION OF PLATE XXXVI 
Figures 1-8 were drawn with the aid of an Abbe camera lucida at table level. Leitz 
oculars and objectives were used: Figs. 1-3 were drawn with ocular no. 4, objective no. 6, 
tube length 170 mm. (X165); Figs. 4, 6, 7, and 8, with ocular no. 3, objective no. 6, tube 
length 170 mm. (X650); Fig. 5 with ocular no. i, objective no. 6, tube length 170 mm. 
(X390). Figs. 9-15 are enlarged 15 times. The drawings have been reduced one-half in 
reproduction. 
The following abbreviations are used: r, rhizoid; protonema; s, spore; a, archegonium; 
an, antheridium; cp, clavate paraphysis; fp, filiform paraphysis. 
Plate XXXVI 
Figs. 1-4. Stages in the germination of spores and development of protonemata. 
Fig. 5. Rudiment of leafy shoot. 
Fig. 6. Median optical section through older leafy shoot. 
Fig. 7. Median optical section through young shoot showing leaves enveloping the 
growing point. 
Fig. 8. Young gametophore. • 
Fig. 9. Unbranched sterile axis. 
Fig. 10. Primary axis having a branch attached basally. 
Fig. II. Primary axis (male) bearing a lateral female branch. 
Fig. 12. Primary axis (female) bearing a lateral male branch. 
Fig, 13. Primary axis (male) bearing a short female branch. 
Fig. 14. Unbranched female gametophore. 
Fig. 15. Unbranched male gametophore. 
Fig. 16. Synoicous head borne on a primary axis. 
