TY  - JOUR
TI  - The embryo-sac of Peperomia
T2  - Annals of botany
VL  - 15
UR  - https://www.biodiversitylibrary.org/part/318613
PB  - Academic Press [etc.]
CY  - London
PY  - 1901-03
SP  - 103
EP  - 118
DO  - 10.1093/oxfordjournals.aob.a088806
AU  - Campbell, Douglas Houghton,
ER  -