Campanulaceae. 
forms, while others again (new forms) run into each other to such an extent 
that it is difficult to recognize specific distinction. While most of them are 
shrubs or small trees, only those are included here which reach a height of about 
18 to 40 feet. Delissea undulata, which attains a height of over 30 feet on Mauna 
Loa, Hawaii (see plate XVI), is here omitted, as its stem is rarely thicker than 
two inches. 
The genus Lobelia, which is represented by five very handsome species, some 
reaching a height of 18 feet (L. macrostachys in Kau, Hawaii), possesses about 
200 species, which are distributed over Africa and South America, while very 
few are to be found in Central America. They usually inhabit high mountains, 
like Abyssinia, Ruwenzori, Kenia, ete., in company with arborescent Compositae. 
In the Hawaiian Islands the genus Lobelia is confined to the middle forest 
zone, but does occasionally ascend into the upper forest zone to an elevation of 
6500 feet. (ZL. hypoleuca, Puunianiau erater, Haleaka a.) 
KEY TO THE GENERA. 
Milky shrubs or trees with axillary inflorescences. 
er arge yellow, an inch or more in diameter: : 
Corolla deeply slit to the base; flowers 2-6 in simple cymes...... Clermontia 
Berry small, occasionally large, but then purple: 
Corolla slit beyond the middle, flowers in racemes....---.--+++-+- Cyanea 
CLERMONTIA Gaud. 
Calycine lobes either as long as_ the corolla and then bilabiate and deciduous or 
shorter than the corolla, bluntly lobed or acute, free and persistent; corolla nearly unl- 
labiate, staminal column free from the corolla; the two lower a 
upper ones naked; fruit a globose or pear-shaped berry with a broad i 
rown shining. Shrubs or trees (with thick latex) branching candelabra like. 
4 
seeds b 
Inflorescence a two to many flowered cyme 
The genus Clermontia, which is peculiar to Hawaii, consists of 17 species, 13 
of which ean be included in the term tree. 
The most common of the shrubby ones is C. macrocarpa Gaud., which grows 
at an elevation of from 1000 to 2500 feet, and even higher, and is replaced in 
the middle forest zone by C. persicaefolia, C. oblongifolia on Oahu, and C. dre- 
panomorpha, ete., on Hawaii. Their branching habit is always candelabra-like, 
and not more than 6 or 8 feet above the ground. 
KEY TO THE SPECIES, 
CLERMONTIA GENUINAE. 
Calyx lobes connate, as long as the corolla; at mat 
rolla. 
H 
urity the entire tube falls with the 
Pedunele two flowered. ‘ 
Pedunele long filiform pendulous....------+--+++++172* sa 707 C, grandiflora 
Ss . 
Peduncle arched, drooping, 1-10 em long; fleshy, corolla dark YS pean 
Pedunele short, erect. si oe 
Corolla and calyx not or little curved when open, slender, nf Sars 
Corolla and calyx strongly arched, green....-----+---*° C. oblongifolia 
471 
