11. The head scales are small, subequal and feebly imbricate , smooth or weakly keeled. 12. The dorsal surface of the head is covered by small, imbricate , keeled scales. 13. The semi-transparency of the plans permits a simultaneous reading of imbricated volumes ? 14. This way an imbricated row is formed. 15. The crown is covered with small imbricate or smooth scales, none of which is enlarged. 16. The pistillate flowers are ovoid with three broad, imbricate sepals and as many valvate petals. 17. Bulbs have imbricate and distichous tunics. 18. The pistillate flowers are also yellow with three cupped sepals and three longer, imbricate petals. 19. They were flattened against each other ( appressed ) and scale-like ( imbricate ). 20. The body scales are imbricate , and in 37 49 rows at the mid-body.
