Sapindaceae. 



other with a parchment-like covering, but are usually single with two abortive 

 ones at the base; the seed is round, brownish-black, and hard. The tree loses its 

 leaves in the winter months ; but as the young leaves come out before all the old 

 ones drop, it is hardly bare for any length of time. Owing to the ravages of a 

 caterpillar which feeds on the flowers, making the whole inflorescence wilt be- 

 fore expansion, very few trees, indeed, bear fruits. 



S. Saponaria L. is the second species of the genus Sapindus found in these 

 islands. It is called A'e on Mauna Loa, while on Hualalai it is known as Ma- 

 nele. The wood is whitish and is of medium strength. 



After reexamination of extensive material of this plant, the writer came to 

 the mature conclusion that the Hawaiian A'e or Manele is identical with the 

 American Sapindus saponaria L. The tree was first found by the writer on the 

 Island of Hawaii on the lava fields of Puuwaawaa, in North Kona, in the year 

 1909. Mr. L. A. Thurston called the writer's attention to some very large trees 

 near the Kilauea Volcano, in the Kipuka Puaulu, and on visiting this most in- 

 teresting district the writer found the trees identical with those from Puuwaa- 

 waa, the only difference being in the size of trunk (5 to 6 feet) and height of 

 tree (80 feet), while in the latter locality the tree is rather small. After exam- 

 ining the material and comparing it with specimens of the introduced Sapindus 

 saponaria L., growing about town, the writer came to the conclusion that the 

 Hawaii plant was new to science. It certainly differed materially from the 

 trees growing at Honolulu. 



The writer after careful examination (unfortunately after the publication of 

 the name Sapindus Thurstonii} came to the conclusion that these differences 

 were not specific and that the tree is identical with the American Sapindus 

 saponaria L., and as such it is here published. The tree had, however, never 

 been recorded growing in its native state on Hawaii, save by J. Remy (No. 566 

 bis), who collected on these islands in the early days, and is only cited in the pub- 

 lication by Drake del Castillo. 



It is desired to state that the trees of Sapindus saponaria L. from Hawaii for- 

 ests reach a larger size than was ever recorded of that species in other parts of 

 the world. The diameter of some of the trees measures six feet and is also but- 

 tressed, as can be seen in the accompanying illustration. The bark of old trees 

 comes off in huge thick scales, exposing the smooth inner layers. The Hawaiian 

 trees are also deciduous. 



Sapindus Oahuensis Hbd. 

 Aulu and Kaulu on Oahu, Lonomea on Kauai. 



SAPINDUS OAHUENSIS Hbd. in Radlkofer, Berichte d. K. Bayer. Acad. (1878) 401, et 

 FI. Haw. Isl. (1888) 85; Radlk. in Engl. et Prantl Pflzfam. III. 5. (1896) 316. 

 Celastrina? Wawra in Flora (1873) 141. 



A glabrous tree, with whitish bark covered with lenticels, the wood pale; leaves 

 ovate, 10 to 20 cm long, 5 to 12 cm wide, on petioles of 2.5 to 7 cm, acuminate, rounded or 

 truncate at the base, but slightly decurrent, quite entire, thick chartaceous. pale glabrous; 



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