Zephyranthes and Habranthus are very diverse. The only and painful way to know them is...to know them. Most of the immense chaos in them is caused by amateurs venturing to name them based on who knows what. H. magnoi has never been found and it is based on a description a few lines long. All my attempts to find it found with nothing and it was years of combing the hilly land up and down. The plants in the images are not even Habranthi.