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Monocotyledons / Monocotiledóneas
Holcus L.
EOL Text
Annuals or perennials. Inflorescence a dense panicle. Spikelets 2-flowered; lower bisexual, upper male, falling entire. Glumes subequal, papery, enclosing the florets. Lemmas glossy, cartilaginous, rounded, indistinctly nerved; lower awnless; upper with an awn.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=131 |
Barcode of Life Data Systems (BOLD) Stats
Specimen Records:31
Specimens with Sequences:62
Specimens with Barcodes:49
Species:5
Species With Barcodes:5
Public Records:26
Public Species:5
Public BINs:0
Holcus (or Soft-grass) is a genus of African and Eurasian plants in the oat tribe within the grass family.[2][3][4]
Holcus species are used as food plants by the larvae of some Lepidoptera species including Coleophora lixella.
- Holcus annuus - Mediterranean and nearby areas from Portugal + Morocco to Caucasus
- Holcus azoricus - Azores - possibly a hybrid of H. lanatus and H. rigidus
- Holcus caespitosus - Sierra Nevada in southern Spain
- Holcus gayanus - Spain, Portugal
- Holcus grandiflorus - Spain
- Holcus × hybridus - France, Germany, British Isles -- H. lanatus × H. mollis
- Holcus lanatus - Europe, Mediterranean + nearby areas from Iceland to Canary Is to Caucasus; naturalized in North + South America, Australia, New Zealand, East Asia, various islands
- Holcus mollis - Algeria, Tunisia, most of Europe; naturalized in Australia, new Zealand, scattered locales in North America
- Holcus notarisii - Macedonia, Italy
- Holcus rigidus - Azores
- Holcus setiger - Cape Prov of South Africa
- formerly included[1]
several species now regarded as better suited to other genera; Andropogon Arrhenatherum Arundinella Bothriochloa Capillipedium Centotheca Chasmanthium Chrysopogon Deschampsia Heteropogon Hierochloe Pennisetum Pentameris Pseudoraphis Rostraria Sorghum Sporobolus Ventenata
References[edit]
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License | http://creativecommons.org/licenses/by-sa/3.0/ |
Rights holder/Author | Wikipedia |
Source | http://en.wikipedia.org/w/index.php?title=Holcus&oldid=646365963 |
Foodplant / miner
larva of Agromyza nigrella mines leaf of Holcus
Plant / resting place / on
puparium of Agromyza nigripes may be found on leaf (outside mine) of Holcus
Foodplant / saprobe
apothecium of Albotricha albotestacea is saprobic on dead stem of Holcus
Remarks: season: 2-8
In Great Britain and/or Ireland:
Foodplant / spot causer
gregarious, with smoky-brown pore pycnidium of Ascochyta coelomycetous anamorph of Ascochyta graminicola causes spots on fading leaf of Holcus
Remarks: season: late summer
Foodplant / spot causer
pycnidium of Actinothyrium coelomycetous anamorph of Ascochyta leptospora causes spots on leaf of Holcus
Plant / resting place / on
female of Baliothrips dispar may be found on Holcus
Remarks: season: 1-12
Other: major host/prey
Foodplant / parasite
cleistothecium of Blumeria graminis parasitises live sheath of Holcus
Remarks: season: 7-10
Plant / resting place / within
puparium of Chromatomyia nigra may be found in leaf-mine of Holcus
Foodplant / parasite
Sphacelia anamorph of Claviceps purpurea parasitises inflorescence of Holcus
Remarks: season: 7
Foodplant / saprobe
colony of Drechslera dematiaceous anamorph of Drechslera dematioidea is saprobic on dead leaf of Holcus
Foodplant / parasite
colony of Dreschler dematiaceous anamorph of Drechslera triseptata parasitises live Holcus
Foodplant / gall
stroma of Epichlo causes gall of stem of Holcus
Remarks: season: fertile in 8
Foodplant / saprobe
apothecium of Lachnum carneolum var. longisporum is saprobic on dead leaf of Holcus
Remarks: season: (2-)6-8(-10)
Foodplant / saprobe
apothecium of Lachnum controversum is saprobic on dead stem of Holcus
Remarks: season: 5-10
Foodplant / saprobe
apothecium of Lachnum tenuissimum is saprobic on dead stem of Holcus
Remarks: season: 5-8
Foodplant / saprobe
scattered, initially immersed pseudothecium of Leptosphaeria culmifraga is saprobic on dead stem of Holcus
Remarks: season: spring, summer
Foodplant / pathogen
pycnidium of Dilophospora coelomycetous anamorph of Lidophia graminis infects and damages live inflorescence of Holcus
Remarks: season: 5-10, esp. 7
Plant / resting place / on
puparium of Liriomyza flaveola may be found on leaf of Holcus
Other: major host/prey
Foodplant / saprobe
numerous, often confluent pycnothyrium of Actinothyrium coelomycetous anamorph of Lophodermium apiculatum is saprobic on dead stem of Holcus
Remarks: season: 3-8
Foodplant / saprobe
immersed pycnidial anamorph of Ophiosphaerella herpotricha is saprobic on stem internode (basal) of Holcus
Remarks: season: 3-7
Other: minor host/prey
Foodplant / saprobe
effuse colony of Periconia dematiaceous anamorph of Periconia minutissima is saprobic on dead leaf of Holcus
Remarks: season: 1-12
Foodplant / saprobe
pycnidium of Hendersonia coelomycetous anamorph of Phaeosphaeria vagans is saprobic on dead stem of Holcus
Foodplant / saprobe
confluent colony of Pithomyces dematiaceous anamorph of Pithomyces chartarum is saprobic on dead leaf of Holcus
Foodplant / saprobe
apothecium of Psilachnum eburneum is saprobic on dead leaf of Holcus
Remarks: season: 4-9
Foodplant / spot causer
amphigenous, numerous, black pycnidium of Septoria coelomycetous anamorph of Septoria bromi causes spots on fading leaf of Holcus
Remarks: season: 6-9
Foodplant / spot causer
long, linear, erumpent sorus of Ustilago striiformis causes spots on live, blistered leaf of Holcus
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | BioImages, BioImages - the Virtual Fieldguide (UK) |
Source | http://www.bioimages.org.uk/html/Holcus.htm |