from The Century Dictionary and Cyclopedia
- A superfamily of basommatophorous pulmonate gastropods, including the Siphonariidæ and Gadiniidæ. They have a patelliform shell, and live attached to rooks, mostly between tide-marks.
- n. A large genus of apetalous Australian shrubs of the order Proteaceæ and the tribe Proteæ, distinguished by its perfect flowers with four anthers sessile on the four calyx-lobes, and a filiform style dilated and spindle-shaped above, and by their growth in dense heads involucrate with colored bracts, becoming in fruit cones with persistent hardened scales, each inclosing a compressed nut containing a single winged or hairy seed.
Sorry, no etymologies found.
Above 3,048 m there is alpine vegetation with alpine willow Salix petrophila, perennial herbs, grasses and sedges which are distinctive, sparse and low growing.
Euphorbia waterbergensis, Hibiscus waterbergensis, and Aloe petrophila are examples of rare Waterberg endemics found in these reserves.
P. 703, Marchantiales: "Marchantia polymorpha and Lunularia": 'Marchantia, polymorpha' in original p. 707, Fig. 14: "Andreaea petrophila": 'pelrophila' in original