96 CLASS-BOOK OF BOTANY. 
Another common epiphyte is Marina, two species of which 
occur in the bush: the flowers are small, wax-like, and 
fragrant. 
Fig. 188. Column 
of Harina, side 
view (mag.), an, 
anther; 9, ros- 
Pig. 187. Flower of 
Harina, front view 
Fig, 186. Part of pase, See tellum; st, stig- 
panicle of Harina i DSOUAIS sty AA0Gt- matic cavity. 
nrucronata. Sales 
(a.) A singular form of flowers prevails in the genus 
Pierostylis (so named from the winged column). The plants 
are terrestrial herbs, bearing grass-like sheathing - leaves, 
springing from underground tubers, which are annually pro- 
duced. In most of our species each plant bears only one 
rather large green flower. In this, the upper sepal and lateral 
3 petals are more or less bent or 
united together to form a boat- 
shaped hood, while the two lateral 
" 
Fig. 191. Column ot 
; j . Péerostylis, side 
Fig. 189. Flower of Pterostytis Been Ee view. an, anther; 
banksti in long. section. st, stigma. 
Fig. 190. La- 
bellum = of 
sepals are united in front. The labellum is rather small and 
narrow, and is nearly all enclosed by the other leaves of the 
whorl, only its apex projecting. It is fastened by a small 
claw to the basal projection of the column, while its lower 
end is produced downwards into .a short curved appendage. 
