| Melica rigida | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Pooideae |
| Genus: | Melica |
| Species: | M. rigida |
| Binomial name | |
| Melica rigida | |
Melica rigida is a species of grass found in Argentina, Brazil (Santa Catarina, Rio Grande do Sul), and Uruguay. [1]
The species is perennial with short rhizomes. It culms are erected and 20–75 centimetres (7.9–29.5 in) long while the plant stem is smooth. The leaf-sheaths are scabrous, tubular, closed on one end and are glabrous on surface. The leaf-blades are flat, stiff, and are 3–9 centimetres (1.2–3.5 in) long by 2–2.5 millimetres (0.079–0.098 in) wide. They also have scabrous margins and surface, the later one of which is rough. The eciliate membrane have a ligule which is 0.5–5 millimetres (0.020–0.197 in) long and have a pubescent surface. The panicle is open, linear, and is 6–20 centimetres (2.4–7.9 in) long by 1–2 centimetres (0.39–0.79 in) wide. The main panicle branches are appressed with scaberulous and dominant axis. [2]
It spikelets are elliptic, solitary and are 8–11 millimetres (0.31–0.43 in) long. Fertile spikelets have pedicels which are curved filiform, and scabrous. They also have 2 fertile florets which are diminished at the apex with its rhachilla internodes being scaberulous. The floret callus is pubescent and have hairs which are 0.1–0.3 millimetres (0.0039–0.0118 in) long. The glumes are dissimilar and are keelless and membranous, with other features being different; Lower glume is obovate, 8–11 millimetres (0.31–0.43 in) long with an obtuses apex, while the upper one is lanceolate, 4–6 millimetres (0.16–0.24 in) long and have an acute apex. [2]
Lemma have ciliated margins, scaberulous surface, acute apex with the hairs being 0.5 millimetres (0.020 in) long. It fertile lemma is chartaceous, elliptic and is 5.5–8.5 millimetres (0.22–0.33 in) long by 2–2.5 millimetres (0.079–0.098 in) wide. The species' palea have ciliolated keels, smooth surface and dentated apex. Flowers are fleshy, oblong and truncate. They also grow together, 0.3–0.5 millimetres (0.012–0.020 in) long, have 2 lodicules and 3 anthers, the later one of which are 1–1.5 millimetres (0.039–0.059 in) long. Fruits are dark brown in colour, have caryopsis and additional pericarp. They also have linear hilum while their size is 2.5–3 millimetres (0.098–0.118 in) long. [2]
In Brazil, the species is found growing in fields on the elevation of 1,000–1,200 metres (3,300–3,900 ft). [1]
Melica argyrea is a species of grass found in Argentina, Brazil, and Uruguay.
Melica argentata is a species of grass endemic to Chile.
Melica longiflora is a grass species in the family Poaceae that is endemic to Chile where it can be found from Coquimbo to Talca.
Melica brevicoronata, is a grass species in the family Poaceae that can be found in Brazil, southern South America, and Cerro Pan de Azúcar, Uruguay.
Melica bonariensis is a species of grass endemic to Argentina where it can be found in such provinces as Buenos Aires, La Pampa, and Rio Negro.
Melica brasiliana, is a grass species in the family Poaceae that is endemic to Brazil and southern South America.
Melica yajiangensis, is a species of grass that is endemic to China.
Melica violacea, is a species of grass in the family Poaceae endemic to Chile.
Melica serrana, is a species of grass endemic to Cerro de las Ánimas, Uruguay.
Melica stuckertii, is a grass species in the family Poaceae that is endemic to Argentina and southern South America.
Melica hyalina is a species of grass found in Brazil and southern South America.
Melica glabrescens is a species of grass found in Buenos Aires and Río Negro, Argentina.
Melica decipiens is a species of grass that can be found in the mountains of Cordoba and San Luis provinces of Argentina.
Melica lilloi is a species of grass found in Catamarca and Tucumán provinces of Argentina at 3,200–3,500 metres (10,500–11,500 ft) above sea level.
Melica kozlovii is a species of grass found on mountain slopes in Mongolia and China at 2,000–3,900 metres (6,600–12,800 ft) above sea level.
Melica paulsenii is a species of grass endemic to Chile where it grows along the coastal cordillera at 50–700 metres (160–2,300 ft) above sea level.
Melica mollis is a species of grass endemic to Chile where it grows in rock crevices at 340 metres (1,120 ft) above sea level.
Melica patagonica is a species of grass that is endemic to South America.
Melica parodiana is a species of grass found in Buenos Aires, Argentina and Uruguay.
Melica radula is a species of grass endemic to China. It grows on grassy mountain slopes and larch forests at 300–1,200 metres (980–3,940 ft) above sea level.
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