OCCASIONAL PAPERS
OF THE
BERNICE PAUAHI BISHOP MUSEUM OF
POLYNESIAN ETHNOLOGY AND
NATURAL HISTORY.
VOL. VII - No. 3
WITH PLATES III-XI
NEW HAWAIIAN PLANTS — VII.
By
CHARLES N. FORBES.
____________
HONOLULU, H. I.
BISHOP MUSEUM PRESS.
1920
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New Hawaiian Plants — VII
By CHARLES N. FORBES.
In classifying and incorporating the Hawaiian botanical material at the Bernice P. Bishop Museum Herbarium, the plants on which the present paper is based seemed to be sufficiently distinct to be described as new species. With the exception of the Hibiscadelphus, which was collected many years ago by Dr. Wm. Hillebrand and sent by him to Horace Mann, all of these species have been collected by the author since 1908.
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Clermontia Samuelii sp. nov.
While collecting botanical specimens on the northern slope of Haleakala, Maui, T. H., between the Keanae Gap and Kipahulu, at an elevation of about 6500 feet, the writer observed a very beautiful species of an undescribed Clermontia, in the dense rain forest a short distance west of an old cone called Wai Anapanapa. In color and shape the flowers resemble those of the common form of C. grandiflora Gaud. which is common on the western slopes of Haleakala in the vicinity of Ukulele, but in other characters the plant differs widely from any of the described species. While related to C. grandiflora Gaud. in character of flowers and in size of leaves, it is at once separated by the character of its inflorescence, and the pubescence of the leaves. This species is very distinct from C. kakeana Meyen and related species, having pubescent leaves; while the flowers at once separate it from C. parviflora Gaud. and its allies. It was the only Clermontia seen in the type locality, but the forest is very dense there, and practically unexplored. I take pleasure in naming the species in honor of Mr. S. A. Baldwin of Makawao, Maui, who very generously aided the Museum in the exploration of Haleakala, and to whom the writer is indebted for many kindnesses.
Clermontia Samuelii has the following characters:
Shrub, 12-18 dm. high, densely branched from the base, the branchlets covered with dense brownish pubescence which is purple on new growth. Leaves obovate to elliptical in outline, acute or sub-acuminate at the apex, acute or cuneate at the base, finely serrate with callous pointed teeth, with fine soft whitish tomentum on both faces but most so below, very dark green above but not shiny, dark but much paler below, rather thin chartaceous when dry, 6.4-7.4 cm. long, 2.3-3.2 cm. wide, on pubescent petioles of 1.4-1.6 cm. in length. Inflorescence a 2-5 flowered cyme, the peduncle 13-8 mm. long, marked by scars and one or more pairs of linear bracts 3 mm. in length; the pedicels filiform, drooping, 2-1.6 cm. long, with subulate bracts near the base. Flowers slightly curved or sickle-shaped. Calyx glabrous, thin, slightly shorter than the corolla, the lobes linear acuminate, the upper one splitting to near the base, the lower ones splitting one-third the distance of the tube, a delicate purplish-pink color; the ovarian portion turbinate, bright green 1.1 cm. long. Corolla 4.6 cm long, 6 mm. wide, glabrous, slightly lighter colored than the calyx. Staminal column and anthers glabrous, purple. Mature fruit not seen.
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The type is mounted on sheet No. 1225, M, in the B.P.B.M. Herbarium at Honolulu, and was collected by C. N. Forbes on the north slope of Haleakala, maui. T. H., at an elevation of 6500 feet on the west of Wainapanap, August 22, 1919. Another specimen is mounted on sheet No. 1215, M, and was collected near the same station on the same date.
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Bernice P. Bishop Museum Occasional Papers Volumn VII, Plate X
CLERMONTIA SAMUELII FORBES.