Subject ASC00001i7
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature.
v. 2 (1866), Page 107 (1866)
MBLWHOI Library
BHL Page 1636313
Keywords
plants heterostylus primrose Primula vulgaris pin center arrangement rose flower center thrum flower Flower flower primula stamen pistil stigma anthers pin centre pin flower physiology plant morpholoy morphology phenotype pollination fertilization allogamy heterostyly polymorphism herkogamy distylous longistylous rose centre brevistylous pin centre cross section rose botany