Lobelia philippinensis subsp. philippinensis

Lammers, Th. G., 2011, Revision of the Malesian species of Lobelia section Rhynchopetalum (Campanulaceae: Lobelioideae), Blumea 56 (3), pp. 218-224 : 221

a. subsp. philippinensis — Fig. 1a

Lobelia philippinensis Skottsb. (1928) 13. — Type: Vanoverbergh 38 (lecto S, here designated; isolecto B[2], FI, GB, L[2], MO), Philippines, Luzon, Bontoc Subprov., 14 Feb. 1914.

Lobelia nicotianifolia var. mollis Elmer (1934) 3180. — Type: Elmer 22181 (holo PNH†; iso MO), Philippines, Luzon, Pampanga Prov., Camp Stotsenburg , Mt Pinatubo , May 1927.

Stems sparsely to densely short-pubescent. Leaves sparsely to densely short-pubescent on both surfaces. Bracts linear, 9– 24 by 0.5– 0.8 mm; bracteoles 1–2 mm long. Hypanthium campanulate or broadly ellipsoid, 4 –7 by 3 – 5 mm, sparsely short-pubescent. Calyx lobes 8 –13 by 1–1.5 mm. Corolla lavender, 28–39 mm long, 4– 8 times longer than hypanthium, sparsely short-pubescent; tube straight, 10 –14 mm long; dorsal lobes 10– 25 by 0.8 –1.5 mm; ventral lobes, 8– 20 by 1–3 mm, connate for 1/2 to 2/3 their length. Filament tube sparsely short-pubescent toward base; anther tube 1.7–2 mm diam, its surface sparsely to densely long-pubescent toward apex, sparsely short-pubescent toward base; dorsal anthers 4.8 –6 mm long; ventral anthers 4 –4.5 mm long, bearded at apex with white trichomes 2.5 – 4 mm long.

Distribution — Endemic to northern Luzon in the Philippines, from Ilocos Norte to Aurora and Zambales.

Habitat & Ecology — Forest openings, 500–1600 m. Flowering and fruiting: October through April.

Additional icones. Skottsberg (1928) f. 12c, 15–17, Murata (1995) f. 64–

65 [seeds].

Notes — In the protologue, one dozen specimens representing nine gatherings were cited but none was called ‘type’. All were examined in this study. Two ( Clemens 9170, B; Bureau of Science 31657, B) are L. eryliae subsp. luzonica . The one here selected as lectotype was the only sheet that Skottsberg had labelled as ‘Typus’ (cf. Rec. 9A.3).

The holotype of L. nicotianifolia var. mollis is presumed to have been lost when PNH was destroyed during World War II .

Figures

Fig. 1 Flowers of Lobelia philippinensis Skottsb. a. subsp. philippinensis; b. subsp.negrosensis Lammers; c. subsp.biliranensis Lammers (a: Elmer 6066, NY; b: Philippine Plant Inventory 6380, BRIT; c: Sulit 5578, L).