38 Nezv Haz^'uiian I 'Units. 



cm. ill IciiKlh. Inflorescence a 2-5 flowered cyme, llic pedunclo 13-8 mm. 

 louK, marked liy scars and one or more pairs of linear bracts ,5 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 tlian the corolla, the lobes linear acuminate, the upper 

 one splitting to near the l)ase, tlie lower ones splitting one-third the distance 

 of tlie tul)e, a delicate purplisli-jjink color; the ovarian portion turbinate, 

 bright green, i.i 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. 



Tlie type is mounted on sheet No. 1225, ^I, in the 15. P. L!. W. 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 tlie west of Waianapa- 

 napa, August 22, 1919. Another specimen is mounted on sheet Xo. 1215. M, 

 and was collected near the same station on the same date. 



Argyroxiphium caligini .sp. iiov. 



PLATE XI. 



iJuriny the month of May, iQio, while hotaiiiziiio' on I 'tut Kiikiii 

 the summit of West ^laui, 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 Howering- specimens. - 

 In Se])tember of 1917 while collecting on Eke an i-solated cone which 

 is about 1000 feet lower in elevation than Puu Kuktii. this species of 

 Silversword was found to be one of the most conspicttous plants 

 of this boggy habitat. The plant proves to be a dilTerent species 

 from that found on either the uplands of the island of Hawaii or 

 of East Matii. It differs frotn 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 l)y 

 llillebrand 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. 

 macroce])halum 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. If., for 1910, p. 80 

 (1911): also for 1918, p. 53 (1919). 



181 



