@article {3239,
	title = {A comparative study of the structure and saprophytism of the Pyrolaceae and Monotropaceae with reference to their derivation from the Ericaceae},
	journal = {Contr. Bot. Lab. Morris Abor. Univ. Pennsylvania},
	volume = {5},
	year = {1919},
	month = {1919///},
	pages = {42 - 109},
	author = {Henderson, M. W.}
}
