1. Anastomoses in the venation of Ginkgo biloba;Aknott;Amer. J. Bot.,1959
2. Analysis of petal venation in Ranunculus. I. Anastomoses in R. re-pens v. pleniflorus;Aknott;Amer. J. Bot.,1963
3. Independent origin of vessels in the monocotyledons and dicotyledons;Cheadle;Phytomorphology,1953
4. The morphological and taxonomic significance of dichotomous venation in Kingdonia uniflora Balfour f. et;Foster;W. W. Smith. Notes Royal Bot. Gard. Edinb.,1959
5. The morphology and relationships of Circaeaster;Foster;J. Arnold Arboretum,1963