Rutaceae. 



The Anonia or Alaniwai is one of the handsomest species of Pelea. It is re- 

 corded by AVawra and Heller as a shrub 3 feet high. The writer collected ma- 

 terial of this species first September 24, 1909, and again October, 1911. It grows 

 only on the Island of Kauai on the summit of Mt. Waialeale, a big flat swamp at 

 an elevation of 5200 feet. It is a small tree with a straight trvink of 4 to 5 feet 

 and reaches a height of 15 to 20 feet. The mountain is always enshrouded by 

 clouds and it is extremely difficult to see farther than a few feet. On the day 

 of the writer's last ascent the sky was perfectly cloudless and a thorough survey 

 could be made of the vegetation, which resulted in the discovery of a number of 

 new species, and also furnished additional data in regard to the plants already 

 known. During the writer's first visit to this most interesting mountain, the 

 cold was so intense, the wind blew with such great force, and rain came down 

 in such torrents, that it was impossible to remain longer than a couple of hours. 

 The second time, however, the writer was more fortunate. Collected flowering 

 and fruiting September 24, 1909, no. 4975, and October, 1911, no. 8883 in the 

 Herbarium of the College of Hawaii. Heller records the plant as a shrub 3 to 4 

 feet high from the bog of Wahiawa, Kauai; this latter locality is at a much 

 lower elevation, about 3000 feet. 



Pelea auriculaefolia Gray. 



PELEA AURICULAEFOLIA Gray. Bot. U. S. E. E. (1854) 343, pi. 36; Mann Proc. Bost. 

 Soc. Nat. Hist. X. (1866) 313, et Proc. Am. Ac. VII. (1867) 158, et Proc. Ess. Inst. 

 V. (1867) 166; Heller PI. Haw. Isl. (1897) 838. Platydesma auriculaefolia Hbd. Fl. 

 Haw. Isl. (1888) 72; Del Cast. 111. Fl. Ins. Mar. Pac. VI. (1890) 134. Platydesma 

 auriculifolium Engl. in Engl. et Prantl Pflzfam. III. 4 (1895) 128.. 



Following is a quotation of A. Gray's brief description of the above species: 



"P. glabra; foliis ternis oblongo-spatulatis basi auriculatis sessilibus; flori'nis 

 fasciculatis ad axillas foliorum delapsorum secus caulem virgatum brevissime 

 pedicellatis ; capsula quadripartita. " 



He says: "The specimen, taken from an upright, nearly simple shrub, bears 

 only a little fruit, and a few fertile ovaries, from which the perianth, stamens, 

 etc., have fallen. The virgate stem is very leafy above; and the flowers have 

 been produced lower down, in small fascicles from the axils of earlier leaves, 

 now fallen. Plant glabrous throughout. Leaves verticillate in threes, coriaceous, 

 pale, oblong-spathulate, obtuse, auriculate at the base, sessile, from 3 to 5 inches 

 long, veined and dotted nearly as in the preceding species; the midrib salient 

 underneath. Ovary more deeply lobed than in P. clusiae folia, being united only 

 at the base; style has mostly fallen. Capsule deeply four-parted; the cocci oval- 

 oblong, otherwise similar, as apparently are the seeds to those of Pelea clusiae- 

 folia. 



"Forests of Hawaii, on the flank of Mauna Kea." 



How Hillebrand could have taken this plant for a Platydesma is difficult to 

 understand. Even Engler in the Natiirlichen Pflanzenf ami lien places it under 

 the latter genus. 



219 



