38 New Hawatan Plants. 
em. 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. 
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 to the west of Waianapa- 
napa, August 22, 1919. Another specimen is mounted on sheet No. 1215, M, 
4 
and was collected near the same station on the same date. 
Argyroxiphium caligini sp. noy. 
PLATE XI. 
During the menth of May, 1910, while botanizing on Puu Kukui 
the summit of West Maui, a small colony of a ‘species of 
Argyroxiphium was observed, but unfortunately all the plants were 
sterile. While the plant has since been observed by Mr. J. F. Rock 
and others, no one seems to have collected flowering specimens.* 
In September of 1917 while collecting on Eke an isolated cone which 
is about 1000 feet lower in elevation than Puu Kukui, this species of 
Silversword was found to be one of the most conspicuous plants 
of this boggy habitat. The plant proves to be a different species 
from that found on either the uplands of the island of Hawaii or 
of Fast Maui. It differs from the other described species in its 
much smaller size. The silvery leaves are about the width of those 
of A. virescens Hbd., but only half the length. The flower heads 
are smaller than those of A. virescens, which are described by 
Hillebrand as smaller than those of A. sandwicense, DC. Field 
experience has proved that size of head is a variable character, the 
flower heads of many plants being fully as large as those of A. 
macrocephalum Gray. Another form of Argyroxiphium on Eke 
differed in having somewhat greenish leaves which however were 
*J. F. Rock in Annual Rept. Bd. Agr. and For., T. H., for toro, p. 80 
(ort); alsor for Tore) p. 53) (i919) 
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