PLATE XVIII. 1 
Smittia. — Mucronella. — Lepralia. 
Figure 1. — Smittia marsupialis, ...... 
la, magnified ; lb, ooecium. 
„ 2. — Mucronella delicatula, ..... 
2 a, magnified ; 2 b, single zocecium, more highly magnified. 
„ 3. — Mucronella magnijica, ..... 
3 a, magnified ; 36, single zomcium, more highly magnified. 
„ 4. — Lepralia dorsiporosa, ..... 
4 a, magnified ; 4 b, back view. 
„ 5. — Mucronella quadrata (PL XVII. fig. 8), 
5a, magnified ; 5b, single zocecium, more highly magnified. 
,, 6. — Smittia marionensis, ...... 
6a, magnified ; 66, single zocecium, more highly magnified. 
„ 7. — Smittia transversa, ...... 
7a, magnified ; 76, single zocecium, more highly magnified. 
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1 Vide note to PI. XVII. 
