Question: Are Myrtus and Hyacinthella both types of genus?
Sentence (from "List of cloud types"): These are, in approximate ascending order of instability or convective activity: "stratiform" sheets; "cirriform" wisps and patches; "stratocumuliform" patches, rolls, and ripples; "cumuliform" heaps and tufts, and "cumulonimbiform" towers that often have complex structures.
Relevant evidence: No