Linn. Soc. Jour., vol. ix., 1867, (Bot.) pp. 1-118;
Flora, vol. xlix., 1866, pp. 241-252, 273-282, 321-325, 337-345, 375-378, 385-398.
Queries about Expression for Anthropological Inquiry.
Report of Smithsonian Institution for 1867, p. 324.
Note on the Common Broom (Cytisus Scoparius).
Linn. Soc. Jour., vol ix., 1867 (Bot.), p. 358.
On the character and hybrid-like nature of the offspring from the illegitimate unions of dimorphic and trimorphic plants.
Linn. Soc. Jour., vol. x., 1869 (Bot.), pp. 393-437.
On the specific difference between Primula veris, Brit. Fl. (var. officinalis, Linn.), P. vulgaris, Brit. Fl. (var. acaulis, Linn.) and P. elatior, Jacq. and on the hybrid nature of the common Oxlip. With supplementary remarks on naturally-produced hybrids in the genus Verbascum.
Linn. Soc. Jour., vol. x., 1869 (Bot.), pp. 437-454.