Lobelia robusta Graham

Lobelia robusta Graham, Edinb. New Phil. Jour 11:378. 1831.
Not separable by vegetative characters from L. assurgens, but less pubescent and with much smaller flowers; bracteoles of the pedicel 4—10 mm. long; flower-bracts linear, about 0.15 cm. wide by 2.5-3 cm. long, the lower larger; flower not inverted in anthesis, 20-25 mm. long, including hypanthium; corolla 15-19 mm. long, pinkish to rose, dark red, or dull purple, the tube 7-10 mm. long, entire except for the dorsal fissure (sometimes fenestrate at base in age), curved near the distal end and the lobes further curved, so that the corolla as a whole is strongly recurved-falcate, the two lobes next the dorsal fissure 7-9 mm. long, the three others 5-6 mm. long; filament-tube pink, 8-12 (15) mm. long, deflexed and much exserted, pubescent, especially along the margins of the filaments, which are united half their length or less; anther-tube lead-colored, 5-6 mm. long, the larger anthers smooth or sparsely bearded in a line along the back, all anthers sometimes tufted at base, the two smaller short white-bearded at tip; hypanthium in anthesis cup-shaped, short-campanulate, or short-turbinate, in fruit turbinate to hemispheric or subglobose, 7-10 mm. broad; capsule about half inferior or a Httle less, 8-12 mm. long; seeds as in L. assurgens, about 0.5-0,6 mm. long.
Type locality: Haiti.
Pedicels in fruit 18-27 (40) mm. long; bracteoles of the pedicel
mostly below the middle; calyx-lobes narrowly deltoid or
lanceolate, obscurely toothed or subentire, 2-2.5 (3) mm. wide
just above the often dilated-deltoid base, usually more than
three times as long as wide ; native of Hispaniola and easteni
Cuba. 59fl. /.. robusta var. robusta.
Pedicels in fruit 30-50 mm. long; bracteoles of the pedicel mostly
above the middle; calyx-lobes mostly deltoid, strongly
pectinately toothed, 2.5-3.5 mm. vride just above the base,
usually less than three times as long as wide; native of Puerto
Rico. 596. L. robustavar. porlo-ricensis.
59a. Lobelia robusta var. robusta McVaugh, var. nov.
Lobelia robusta Graham, loc. cit., as to type. Tylomium rohustum Presl, Prodr. Mon. Lob. 32. 1836. Tupa robusta A. DC. in DC. Prodr. 7: 394. 1839. Dortmannia robusta Kuntze, Rev. Gen. 973. 1891.
Pedicels in fruit 18-27 (40) mm. long; bracteoles of the pedicels mostly below the middle; calyx-lobes narrowly deltoid or lanceolate, usually more than three times as long as wide, obscurely toothed or subentire, 2-2.5 (3) mm. wide just above the base, which is usually dilated-deltoid.
Distribution: Mountains of Hispaniola and eastern Cuba, mostly at elevations of 500 m. or more.

Lobelia robusta là loài thực vật có hoa trong họ Hoa chuông. Loài này được Graham mô tả khoa học đầu tiên năm 1831.