大苞水竹葉

Aneilema nudiflorum var. bracteatum C. B. Clarke in DC., Monogr. Phanerog. 3: 211. 1881.

Perennial herbs, with stolons. Roots fibrous. Stems puberulent along a line decurrent from the sheath, otherwise nearly glabrous; stems dimorphic: the vegetative shoot acaulescent, erect; the flowering shoots one to several per plant, ascending, the longer stems somewhat decumbent basely, unbranched or sparsely branched. Rosette leaves, lorate to oblanceolate, 11-18 cm long, 1.1-1.4 cm wide, apex acute, upper surface glabrous, lower surface densely puberulent, margins ciliate toward sheath; cauline leaves lanceolate, 3.5-12 cm long, 0.8-2 cm wide; sheath puberulent, margins ciliate. Prophyll sheathing, 0.6-1.2 cm long, apex slightly bifid. Inflorescence terminal, consisting of a single cincinnus, 1-5 flowering shoots from axils of the cauline leaves; bracts broadly ovate, ca. 8 mm long, ca. 7 mm wide, apex acute, glabrous, marcescent; bracteoles orbiculatus to elliptic, ca. 5 mm long, 5-6 mm wide, glabrous, marcescent; pedicels 3.5 mm long, glabrous. Flowers bisexual; sepals lanceolate, boat-shaped, greenish, equal, ca. 4 mm long, ca. 1.6 mm wide, apex obtuse, covered with glandular hairs; petals suborbicular, ca. 5 mm long, ca. 4.4 mm wide, purple, veins obscure in fresh material, fertile stamens 2, equal, antesepalous, anthers indigo, narrowly elliptic-oblong, ca. 1 mm long; pollen whitish; filaments ca. 3.4 mm long, bearded, the hairs moniliform, purple, on the outside of the filament; staminodes 4, unequal, one antesepalous, the anther vestigial, the filament ca. 2.4 mm long, bearded; the others antepetalous, equal, antherodes trilobed, white, ca. 0.8 mm long, filaments ca. 2 mm long, glabrous; ovary ellipsoid in outline, acutely 3-angled, ca. 1.5 mm long; style thickened toward the base, ca. 2.4 mm long. Capsule trilocular, 3-valved, ellipsoid, 3-angled, ca. 4 mm long, locules 2-seeded, apex mucronulate. Seed brown, deltoid in outline, 1.6-1.9 mm long, 1.2-1.3 mm wide, apex acute, base truncate, dorsiventral, dorsal surface convex, ventral carinate, radially fasciate with tomentum and many small farinose granules, embryotega semilateral, hilum linear. Chromosome number:

Taipei: Shihting District: Huangtitien, around Tienwang Shrine, immeadiately beneath the west peak of mt. ridge, elev. ca. 450 m, Peng 8575, Peng et al. 12876 (HAST); Huang-ti-dien, Shiting, Peng 5042 (HAST); Juifang Town: en route from Houtung to Mutan, Y. J. Chen et al 298 (TNU); en route from Juifang to Chiufen, Y. J. Chen et al 301 (TNU); Pinglin Hsiang: Watershed of Feitsui Dam, Y. J. Chen & Chen 425 (TNU); Taipei, Ou s. n. Jul. 10, 1981 (TAI); Nankang: Nankangshan-Muchihshan. Collected with biology students of National Taiwan Normal University. Nankangshan, on mt. Peak, elev. ca. 375 m, Peng 11152 (HAST); Taishan Hsiang: en route from Taishan to Linko, Taishanyen. Y. J. Chen 260 (TNU); Yangmingshan, Chienshan Park. As weed in lawn, elev. ca. 420 m, Peng & Leu 13510 (HAST). Yunlin: Yunlin, Y. J. Chen & Li 867 (TNU). Tainan: Tungshan District, Mt. Kantoushan, Hsienkungmiao (Temple), elev. ca. 550-690 m, Peng 7074 (HAST); en route from Yuching to Neikeng, elev. ca. 100-150 m, Chen 534 (HAST).

Indo-China Peninsula. Taiwan, in waste places, usually found in cultivated ground. Flowering all the year round.

本種植物在形態上和M. loriformis十分類似，但葉為倒披針形，寬大 （寬1 cm以上），花序上有明顯的寬卵形苞片，較遲凋落，花皆為兩性花，至今尚未發現功能性的雄花，種子胚蓋深陷，表面有密茸毛及粉狀顆粒相間排列成輻射條紋；M. loriformis葉線形，苞片為較窄的卵形，在花開時隨即掉落，花有兩性花及功能上的雄花，種子表面有密茸毛排列成輻射狀或網狀紋路，仔細比較形態特徵應可加以區別。 早期有關本種植物的採集記錄相當稀少，名錄上也沒有記載，現在經常可在農田附近發現，民間則廣植為藥用植物，因此疑為栽培植物。

Phenology: perennial herbs, evergreen

Roors form: roots fibrous

Stems form: monomorphic stem, dimorphic stem

Monomorphic stems habit: stoloniferous

Dimorphic stems habit: vegetative shoot acaulescent; flowering shoots ascending

Rooting at nodes or not: rooting at nodes

Lateral shoots: not perforating

Phyllotaxis: spiral phyllotaxis

Leaves: petiole: sessile

Leaves: shape (if dimorphic leaves, selected by rosette leaves): oblanceolate, lorate

Leaves: apex: acute

Leaves: length (cm): 11-18

Leaves: width (cm): 1.1-1.4

Leaves indumentum: upper surface: glabrous

If upper surface glabrous, leaves indumentum: margin: pubscent

Prophyll: sheathing, apex bifid

Inflorescence: take plance: terminal

Inflorescence: rhipidium

Bracts: shape: ovate, broadly ovate

Corolla: actinomorphic: petal 3, base free, equal or subequal

Flowers: bisexual

Sepals: sepal 3, equal

Sepals: color: greenish

Sepals: base: free

Sepals: shape: lanceolate

Sepals: indumentum: glandular hairs

Sepals: length (if dimorphic sepals, selected by anticous two) (mm): 4

Sepals: width (if dimorphic sepals, selected by anticous two) (mm): 1.6

Flowers: color: pink, purple, or blue

Petals: shape: suborbicular

Petals: length (mm): 5

Petals: width (mm): 4.4

Stamens form: trimorphic: fertile stamens 2

Ovarys: shape: ellipsoid

Ovarys: indumentum: glabrous

Ovarys: length (mm): 1.5

Styles: indumentum: glabrous

Styles: length (mm): 2.4

Capsules: dehiscence: dehiscent, indehiscent

Capsules: shape: ellipsoid

Capsules: trilocular

Capsules: indumentum: glabrous

Capsule locules seeds: number: 2

Capsules: length (mm): 4

Seeds: lengh (if dimorphic seeds, selected by dorsal one) (mm): 1.6-1.9

Seeds: width (if dimorphic seeds, selected by dorsal one) (mm): 1.2-1.3