EXPLANATION OF PLATE 13 
Polystachya obanensis Rendle 
1. Inflorescence, natural size. 
2. Lip x 4. 
Polystachya Dorotheae Rendle 
3. Flower x 2. 
4. Lip x 4. 
Polystachya nigerica Rendle 
5. Plant, natural size. 
6. Flower x 4. 
7. Lip viewed from above x 10. 
8, 9. Side views of lip x 10. 
Polystachya seticaulis Rendle 
10. Plant, natural size. 
1l. Flower x 8. 
12. Lip x 10. 
