838 MINNESOTA BOTANICAL STUDIES. 



the main tributary of the Hanapepe river, a somewhat differ- 

 ent form was collected. The specimens are from a tree fifteen 

 feet high. The leaves are large, with rounded or retuse apex, 

 the largest four inches wide and six inches long. A number of 

 trees were noticed in the vicinity. The species has been found 

 only on Kauai. 

 July to October (2609). 



Pelea auriculaefolia A. Gray, Bot. U. S. Expl. Exped. 15: 343, 

 pi. 36. 1854. 

 Platydesma cfuriculaefolia Hillebr. Fl. Haw. Is. 72. 1888. 



Hillebrand has transferred this species to the genus Platy- 

 desma, but seemingly without good reason. He indicates that 

 he has specimens of this species from the island of Hawaii, 

 from the " Kohala range above Waimea (Hbd,)" and from 

 "woods of Laupahoehoe, " collected by Lydgate. He says, 

 "the description of the fruit according to Gray." He evidently 

 never saw a fruiting specimen, and one would think had never 

 consulted the excellent plate in the atlas of the Botany of the 

 Exploring Expedition, or the original description. Yet, speak- 

 ing of Pelea sandwicensis, he says: "In Gray's figure, the cap- 

 sule is not correctly given, in fact it hardly differs there from 

 that of P. volcanica on the next plate." Whatever inaccuracies 

 there may be in this figure, no one should for an instant con- 

 sider the two figures very similar, as the shape and size of the 

 capsules is noticeably different. The inflorescence of Platydes- 

 ma is very different from that of Pelea, and the flowers, so far 

 as I have observed, are much larger. The difference between 

 the fruit of the two genera is so marked, that a blind man 

 could readily distinguish them by the touch. The explanation 

 for this slip on the part of Hillebrand, must be that he had 

 specimens of an undescribed Platydesma, and erroneously re- 

 ferred it to Pelea auriculaefolia. 



Pelea clusiaefolia A. Gray, Bot. U. S. Expl. Exped. 15:340 v 

 pi. 35. 1854. 

 Clusia sessilis H. & A. Bot. Beechy, 80. 1832, not Forst. 



A species which is common in the type locality, ' ' mountains 

 behind Honolulu, Oahu." Usually a small tree, but sometimes 

 shrubby. In my specimens, the leaves are all opposite Some 

 of the specimens, No. 2303, which are in flower only, were dis- 

 tributed as "Pelea Sandwicensis." Comparison with the origi- 

 nal description, and with the plate, convince me that they are 

 P. clusiaefolia. 



May to November (2303, 2348). 



