used as combining form of L. sulphureus SULPHUREOUS in the sense of ‘sulphureous and….’

1

1677.  E. Browne, Trav. Germany, etc., 161. Baths … esteemed to be Sulphureo-nitrous.

2

1693.  Phil. Trans., XVII. 1004. A Sulphureo-saline Spring.

3

1731.  Miller, Gard. Dict., Y yyy. These sulphureo-aërial Particles in the Leaves.

4

1754.  Phil. Trans., XLVIII. 853. The sulphureo-reguline substance.

5

1871.  W. A. Leighton, Lichen-flora, 46. C[oniocybe] furfuracea, Ach. sulphureous or sulphureo-virescent, apothecia sulphureo-suffused, or with flavo-virescent, naked, elongate stipites.

6