AFRO-INDIAN REGIONS. 



303 



(No. 5); leaves elliptical, hairy, 5-nerved, the under surface white. "Upolu," 



Rich and Brackenridge. 



Gen. incert. (No. 1). A shrub; leaves alternate, long-petioled, broad-lanceolate, acuminate, 

 entire ; the flowers not seen. Tutuila and Savaii. 



(Halophila ovata, Gaud., No. 1). Two or three inches high, creeping, rooting at intervals; 

 leaves Potamogeton-like, elliptical, long-petioled, papill., stipules at base ? ; fructif. not 

 seen. Marine, growing on the bottom in shallow water, and loosely overspreading con- 

 siderable tracts of the inundated coral-shelf; Tutuila and Savaii. 



Nov. gen. Corallorhizoid (No. 1). Etioled, or in no part green ; devoid of leaves; the 

 flower usually single ; capsule large. Tutuila, growing in the deep shade of the 

 mountain-forest; and seen by Mr. Rich on Upolu. 



Gen. Neottoid (No. 1). Two to three feet high; leaves lanceolate, sometimes ten inches 

 long; capsule rather small. On mountains in Tutuila, and in the forest of Interior 

 Savaii, rare. 



(No. 2) ; a second species. A foot high ; leaves with the median nervure white, 



Goodyera-like. Frequent in the forest, on Tutuila and Savaii. 

 (No. 3 j ; congeneric. A foot high; stem pubescent; leaves green, lanceolate. 



Frequent on Tutuila and Savaii. 

 (No. 4); leaves petioled, ovate-lanceolate, about five inches long; flowers large, 



and white. 



(No. 5); a fifth species. Smaller flowers; leaves petioled, ovate, three inches 



long. In the deep forest of Interior Savaii, rare. 

 Pterocheilus (No. 1); leaves inequ., ovate, nerved; reflexed bracts; flowers small, 



purplish. Frequent on Tutuila and Savaii. 

 (Nervilia, No. 1 ; recorded as) nov. gen. Epipactoid. Scape a foot high ; leaves long- 

 petioled, reniform ; flowers green, pend. ; long lacin. to corolla. Savaii. 

 ( No. 2); possibly a second species?; sheaths larger and looser; leaves not seen. 



" In sand on Tutuila," Brackenridge. 

 Bletia ? (No. 1). Stem three to five feet high ; leaves lanceolate, ribbed, two to three 



feet long; flowers purple and rather showy. Tutuila, growing in a savanna or natural 



opening, at the elevation of five hundred feet. 

 Gen. Serapioid (No. 3). Three to five feet high; leaves two feet by five inches, ribbed ; 



bracts elliptical, acuminate; fruit pedieelled, large Savaii. 

 Calanthe (No. 1). Habenaria-like ; corolla large, white, the lip 4-parted. "Upolu," Rich 



and Brackenridge. 



Gen. Orchioid ? (No. 1). Oncidium-like, but growing on the ground; stem six inches; 



I>ioscorea; compare (No. 1 Metia to) Taheiti. Leaves broad-cordate, long-acuminate; 

 the " roots bitter, not edible." Savaii, frequent in cultivated ground. 



; compare (No. 2 Taheiti). Leaves broad-sagittate. Frequent on Savaii. 



( pentaphylla?. No. 3 ; recorded as) Convolvulus; compare Taheiti. Five-leaved; 



flowers and fruit not seen. Savaii. 



alata, (No. 4) ; stem 4-alate. Upolu and Savaii ; cultivated, (having been intro- 

 duced by aboriginal settlers). 



Tacca (No. 1, bis Metia to Taheiti); the Polynesian "arrow-root." Abundantly culti- 

 vated on Savaii. 



Dracaena terminalis, (No. 1 bis Metia to Taheiti). Extensively cultivated on Manua, 



