生活型

herb

形態特徵

• An annual herb, up to 45 cm long; stems slender, quadriangular, erect, tufted, herbaceous and pubescent.
• Leaves opposite, decussate, petiolate; petioles pubescent, 2-5 mm long; blades triangular-ovate or broadly ovate, 0.8-1.5 cm long, 0.5-1.2 cm wide, apex obtuse, base truncate or obtuse, the margins crenate, the upper surface glabrous, the veinlets sunken, the lower surface glabrous or pubescent along veinlets, covered with glandular dots.
• Inflorescence in terminal raceme, 6-11 cm long; flowers bilabiate, opposite, axillary, spreading, leafy bracteate, the leafy bracts triangular or narrowly ovate, sub-sessile, the pedicels curved, nearly in one plane, up to 3 mm long; calyx two lobes at flower bud and one lobe fallen with scutellum at mature fruits, with a scutellum outside, pubescent and glandular hairy; corolla tubular, hairy, purple to blue, the tube curved at base, 0.8-1.3 cm long; stamens 4, pubescent on anther; pistil curved at base of stigma. Pollen grains 3-colpate, prolate-spheroidal to prolate, isopolar, 14.9-20.4 μm long, 14.8-15.3 μm broad (SEM) or 21-32 μm long, 20-30 μm broad (LM), tectum reticulate.
• Nutlets orbicular, 0.9 mm long. 0.8 mm broad, with nutlet coat rounded concentric tuberculae ornamentation.
• Chromosome number n = 13. <li>This new species is very similar to <i>S. barbata</i>, but it differs from the latter by having the blade triangular-ovate to broadly ovate, less than two times longer han broad, and rounded concentric tuberculae type of nutlet coat. This new species is also similar to <i>S. tashiroi</i>, but it differs from the latter by having the shorter corolla tubes and rounded concentric tuberculae type of nutlet coat. S.-H. Chen (1990) described a plant, <i>Scutellaria javanica</i> Jungh. var. <i>playfairii</i> (Rolfe) H. Keng which is very similar to <i>S. taipeiensis</i>. But the length of corolla tube is quite different between these two species. The present new species has a shorter corolla tube, 0.8-1.3 cm long, while the corolla tube described by Chen is 2.5-3.5 cm long.</li>

物候

Flowering and fruiting from March to June.

分布

• 台灣 : Growing on exposed rocks or soils adjacent rocks along sunny roadside between Maukong to Chihnan Temple in Mucha, Taipei, about 200 m in elevation.

引證標本

T.- C, L.- C. & R.- P. Huang 18103 (Paratype: TAI).

參考文獻

• Tseng-Chieng Huang, Arthur Hsiao and Ming-Jou Wu, Taiwania 48(2): 133. 2003.