M. J. B., West Philadelphia, writes: " Reading the London Garden recently, I learned that Mr. Elwees showed an interesting collection of cut flowers, consisting of Calochorti, Brodises, Alliums, and Gladioli. Will you please inform me by what rule in botany we are to give a Latin form of plural to Gladiolus and Calochortus, while Allium and Brodiae are to have an English one ?"

[We have asked the same question ourselves in the past, but never heard the answer. Our correspondent should address those papers in which the differences occur, if he really seeks an explanation. - Ed. G. M].