Rubiaceae-Campanulaceae. 



at both ends, ehartaceous to membraneous, pubescent underneath; stipules 6 mm, acuminate; 

 peduncles in the axils of old leaves and. cauline 3.5 to 4 cm long, pluribraeteate at 

 the base; flowers 8 to 12 in a glomerule, connate with their bases; calyx 2 to 3 mm, free 

 from the ovary, truncate, with 3-toothlets; corolla 8 mm, puberulous, tubular, 3-toothed; 

 anthers 3, subsessile on the lower third of the corolla, included; ovary small, globose 

 depressed, immersed in an annular disc at the bottom of the calyx; style of the length of 

 the calyx, bifid; drupe or berry of 4 distinct woody pyrena, fleshy, adherent with and 

 enclosed within the globose calyx, each pyrena with 1 erect seed, and the calyxes connate 

 into a syncarpium which measures about 2.5 cm in diameter. 



This exceedingly rare species was first collected by J. Lydgate in the forests 

 of Ilamakua and Waikapu, Maui. The writer's attention was called to a tree 

 growing in the forest above Makawao, Maui, by Mr. L. v. Tempsky, who hav- 

 ing become interested in native trees, happened to find it though practically 

 hidden by Kopiko trees and le-ie vines. It turned out to be this rare species. 



A large tree of this species was found by the writer along the ditch trail on 

 the windward side of Mt. Haleakala, near Honomanu gorge. The tree is freely 

 branching and has a trunk of over one foot in diameter. The wood is yellow. 



According to Hillebrand a variety occurs on Mt. Puakea of the Waianae range, 

 Oahu. Its leaves are thicker and obtuse ; the corolla is four-toothed and possesses 

 4 stamens instead of three. First collected by Dr. H. Wawra. 



campanulace:ae. 



Tribe Lobelioideae. 



While the family Campanulaceae numbers 59 genera, only the tribe Lobeli- 

 oideae, with 22 genera, is of importance as far as Hawaii is concerned. Of this 

 tribe, the Hawaiian Islands possesses six genera, five of which are endemic, the 

 remaining one being the cosmopolitan genus Lobelia. Nowhere, with the ex- 

 ception of South America, does this tribe reach such a wonderful development 

 as in the Hawaiian Islands. It has the largest number of species of any plant 

 family represented here in these islands ; next to it ranks the Compositae. 



Many of our Lobelioideae are arborerscent, some of them reaching a height of 

 40 feet, and are a typical feature in the forests of Hawaii. The tribe in general 

 is mainly tropical, and reaches to the southern temperate zone. Quite a number 

 inhabit North America, and two the Mediterranean regions. The Hawaiian 

 Islands, with its numerous arborescent forms, ranks next to South America, which 

 has the largest number of species, as Centropogon Presl., with 80 to 90 species, 

 and Siphocampylus Pohl, with 100 species, especially numerous in the Andes 

 and Brazil. But if we compare South America in size with the Hawaiian Islands, 

 which has up to 100 species of the tribe Lobelioideae, we find that really nowhere 

 in the world does this tribe reach such a wonderful development in such a com- 

 paratively small area. The other islands of the Pacific are void of Lobelioideae, 

 and only Tahiti and the Society Islands, with Raiatea, have in all four species 

 belonging to three different genera. 



The Hawaiian species present sometimes really grotesque and specialized 



469 



