108 BOTANICAL GAZETTE [AUGUST 
It is probable that Hawaii originally received. its contribution 
from the Malayan center, although its 4 genera are now almost 
wholly endemic. 
All of the 13 or more Hawaiian species are endemic, and of 
these a number are sharply localized in their range. The 4 genera 
are represented as follows: Tetraplasandra, 7 spp.; Reynoldsia, 
1 sp.; Plerotropia, 3 spp.; Cheirodendron, 2 spp. The charac- 
teristic American-Asiatic genera Aralia and Panax do not occur 
in Hawaii. 
Labiatae 
The Labiatae are represented by 7 genera. Three (Sienogyne 
with 16 to 18 species, Phyllostegia with about 20 species, and 
Haplostachys with 3 species) are endemic. Plectranthus comes 
from Australia, and Sphacele from the Pacific Coast of America. 
The two remaining genera (Salvia and Siachys) are weeds of world- 
wide geographic range. 
Hawaii has no equivalent be the familiar mints of eastern 
fields and waysides, such as catnip, peppermint, pennyroyal, 
hoarhound, and a score of others. Our Sphacele hastata, endemic 
from an Andean genus, is a typical example of precinctiveness. It 
forms an extensive belt around the great volcanic mountain 
Hale-a-ka-la at an elevation of about 3000 ft., and occurs nowhere : 
else in the archipelago. 
Many of the shrubby species sof - Phyllostegia and Stenogyne have 
lovely masses of flowers, white, pink, and red, and give beautiful 
color effects against the dark greens of the rain forest and the wet 
— jungles which they inhabit.” 
Malvaceae” 
“The Malvaceae constitute a large family. 
: Se oe exept hee arctic regions, md iad eed 
_ _ the tropics pics. Hawaii is well endowed with this — : 
ae group. "There ¢ are 2 endemic genera: Kokia, the Hawaiian free 
cotton, with 2 species; — a apecien.. All of ae 
