Panicum pallide-fuscum Schumach., Beskr. Guin. Pl. 58. 1827.
Annuals to biennials; rhizome absent; clums branched and geniculate at lower nodes, sometimes
ascending, 20-50 cm high. Blade slightly infolded, ca. 10-20 cm long, 4-8 mm wide; ligule a ring of
hairs; sheath slightly compressed. Inflorescence a contracted cylindrical panicle, 4-15 cm long. Spikelets
2-3 mm long, subtended by brownish or purplish brown colored bristles, bristles 2-3-times as long
as spikelet; lower glume ca. 1/3 as long as spikelet, 3-veined; upper glume ca. 1/2 as long as spikeket, 5-
veined, lower lemma and upper glume subequal, 5-veined, enclosing a narrow lower palea; upper
lemma coriaceous, ovate-elliptic, rugose.
ILAN: Tali, Yang 2742. TAIPEI: Yangmingshan, Hsu 905. TAOYUAN: Jenmei, Kuo 6611. HSINCHU: Chidien,
Huang 1073. TAICHUNG: Houli, Hsu 9016; Tatushan, Hsu 4656. NANTOU: Kuantaochi, Kuoh 4233. PINGTUNG:
Santimen, Liu 39. TAITUNG: Lanyu Is., Hsu 9372.
Tropics of Old World. Taiwan, very common in grasslands, yards and along roadsides.
sclerenchyma 厚壁組織: (mistr)strand variable with size of vein
chlorenchyma 葉綠組織: (radia)cells radiate and lesser than bundle sheath cell in width
bundle sheath 維管束鞘: (sk)single bundle sheath with conspicuous chloroplast
buliform cells well developed 泡狀細胞發達: (bboth)appear both in adaxial and abaxial side
chlorenchyma cell number between two adjacent veins: 2
chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (per)large amount and in peripheral site
mestome sheath 內束鞘細胞: (Xyms -)metaxylem pole adjacent with outer bundle sheath
distance between two adjancent vein 脈間距: 75 micrometer
length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 4