Flora of Ashdown Forest - Botanical Society of the British Isles

211Glyceria f/uitans. Floating sweet-grass.Frequent on the Forest (Hall 1980).Locally frequent in wet pastures, boggy flushes, ditches and along the margins of smallstreams in pastures, and also present, sometimes nearly dominant but not flowering, alongthe sides of streams in alder woodland, It occurs in shaJlow, seasonally-inundated land onnutrient-rich soils, usually with a fine mineral substrate.It 'IS more variable than G. declinata and G. nota ta, possibly because it is largely outbreeding(Borrill 1958a, b).Widespread and frequent in the Weald and in Britain. Widespread in Europe, andpresent in North America.Glyceria declinata. Small sweet-grass.Tetrads 33V, 43F and 53B (Hall 1980).Very locally distributed in scattered wet sites around the Forest. Borrill (1958a) notesit can persist in trampled turf and occurs on both acidic and base~rich soils. Plants withshort grey leaves should be carefully examined to see if the lemma is toothed (do not3 -t-t---'"----'--t- confuse this with the palea teeth).Scattered in the Weald and in lowland Britain. Widespread in Europe, and present inNorth America.4 5Glyceria notata (G. pJicata). Plicate sweet~grass.By the stream at Coleman's Hatch (Done 1914). Tetrads 42J, 43A and 43R (Hall 1980).Wet ditch east of Stonehouse Farm, Forest Row (437.349), 1995, TR & PA, the samearea as Done's and Hall's 43R records. The tetrad 42J and 43A records look odd as it doesnot tolerate acidic soils (Borrill 1958a),3 -++-----'-/- Local in Sussex and widespread in lowland Britain. In Europe, North Africa and westernAsia.4 5Melica uniflora. Wood melick.Frequent on the Forest (Hall 1980).Scattered around the edge of the Forest on woodland banks, sunken lanes, etc.,perhaps its most characteristic habitat, often with Brachypodium sylvaticum. It also growson dry banks in woodland.3 -+-k-----'--t- Frequent in the Weald, and widespread in Britain. Most of Europe and in south-westAsia.4 5Helictotrichon pubescens (Avenula pubescens). Downy oat-grass.One small patch on calcareous verge with Bromopsis erecta, pH 6.7, opposite junction atKing's Standing (473.301), 1995, Flora meeting.Frequent on the Downs and some of the calcareous clays and limestones in the Weald,casual or introduced elsewhere, as presumably is our record. Widespread in Britain3 especially on calcareous soils, and fairly widespread in Europe and temperate Asia.4 5