Field of Science

Festuca

Blue fescue Festuca glauca, from here.


Belongs within: Pooideae.

Festuca, the fescues, is a genus of grasses found in temperate parts of the world. Many species are commercially significant as grazing or lawn grasses.

Characters (from Lu, Chen & Aiken): Perennials, tufted, shoots extra- or intra-vaginal. Leaf sheath margins usually free, rarely connate, sometimes with auricles; leaf blades folded to conduplicate and filiform, sometimes flat; ligule membranous. Inflorescence an open, contracted or spikelike panicle. Spikelets with 2 to several florets, uppermost floret usually reduced; rachilla usually scabrid, rarely smooth or pubescent; disarticulating above glumes and between florets; glumes usually unequal, herbaceous to scarious, rarely subleathery, lower glume often small, 1-veined, upper glume usually shorter than lowest lemma, 3(–5)-veined; lemmas usually similar in texture to glumes, often subleathery at least with age, usually more or less laterally compressed but not keeled, rounded on back at least toward base, usually 5-veined, veins sometimes prominent, apex acuminate, entire or notched, awned or awnless; palea subequal to lemma, keels scabrid, rarely smooth. Stamens 3. Ovary glabrous or hairy on top. Caryopsis oblong or linear, usually ventrally sulcate, usually free from lemma and palea, hilum long-linear. x = 7.

<==Festuca
    |--F. alpina PS98
    |--F. arizonia SF98
    |--F. arundinacea HE80
    |--F. callieri (Hack. ex St.-Yves) Markgr. 1933 PL04
    |--F. commersonii D03
    |--F. coxii A27
    |--F. duriuscula C55b
    |--F. elatior C55b
    |--F. gigantea SF98
    |--F. glauca SF98
    |--F. gracillana SB03
    |--F. idahoensis GPWG01
    |--F. leptopogon KYK07
    |--F. littoralis A27
    |--F. longifolia SF98
    |--F. multinodis A27
    |--F. novae-zealandiae [=F. ovina var. novae-zelandiae] A27
    |--F. obtusa SF98
    |--F. octiflora EBS98
    |--F. ovina SF98
    |--F. paradoxa SF98
    |--F. pilosa C55a
    |--F. polycolea O88
    |    |--F. p. var. polycolea O88
    |    `--F. p. var. brevis O88
    |--F. pratensis D37
    |--F. purpurascens D03
    |--F. rubra SF98
    |--F. undata O88
    |    |--F. u. var. undata O88
    |    `--F. u. var. aristata O88
    `--F. versuta SF98

*Type species of generic name indicated

REFERENCES

[A27] Andersen, J. C. 1927. Popular names of New Zealand plants. Transactions and Proceedings of the New Zealand Institute 57: 905-977.

[C55a] Candolle, A. de. 1855a. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 1. Librairie de Victor Masson: Paris.

[C55b] Candolle, A. de. 1855b. Géographie Botanique Raisonée: Ou exposition des faits principaux et des lois concernant la distribution géographique des plantes de l’époque actuelle vol. 2. Librairie de Victor Masson: Paris.

[D37] Dobzhansky, T. 1937. Genetics and the Origin of Species. Columbia University Press: New York.

[D03] Dusén, P. 1903. The vegetation of western Patagonia. In Reports of the Princeton University Expeditions to Patagonia, 1896-1899, vol. 8 – Botany (W. B. Scott, ed.) pp. 1-34. The University: Princeton (New Jersey).

[EBS98] Elliott, K. J., L. R. Boring & W. T. Swank. 1998. Changes in vegetation structure and diversity after grass-to-forest succession in a southern Appalachian watershed. American Midland Naturalist 140: 219-232.

[GPWG01] Grass Phylogeny Working Group. 2001. Phylogeny and subfamilial classification of the grasses (Poaceae). Annals of the Missouri Botanical Garden 88 (3): 373-457.

[HE80] Healy, A. J., & E. Edgar. 1980. Flora of New Zealand vol. III. Adventive cyperaceous, petalous and spathaceous monocotyledons. P. D. Hasselberg, Government Printer: Wellington (New Zealand).

[KYK07] Khan, M. R., P. S. Yadava & A. Kikim. 2007. Additions to the flora of Manipur. Bulletin of the Botanical Survey of India 49 (1-4): 215-218.

[O88] Ohba, H. 1988. The alpine flora of the Nepal Himalayas: An introductory note. In The Himalayan Plants vol. 1 (H. Ohba & S. B. Malla, eds) The University Museum, University of Tokyo, Bulletin 31: 19-46.

[PL04] Pohl, G., & I. Lenski. 2004. Zur Verbreitung und Vergesellschaftung von Pennisetum orientale Rich. in Nordeuböa (Griechenland) (Poaceae, Paniceae). Senckenbergiana Biologica 83 (2): 209-223.

[PS98] Prosser, F., & S. Scortegagna. 1998. Primula recubariensis, a new species of Primula sect. Auricula Duby endemic to the SE Prealps, Italy. Willdenowia 28: 27-46.

[SF98] Saikkonen, K., S. H. Faeth, M. Helander & T. J. Sullivan. 1998. Fungal endophytes: a continuum of interactions with host plants. Annual Review of Ecology and Systematics 29: 319-343.

[SB06] Sarno, R. J., M. S. Bank, H. S. Stern & W. L. Franklin. 2006. Effects of age, sex, season, and social dynamics on juvenile guanaco subordinate behavior. Journal of Mammalogy 87 (1): 41-47.

No comments:

Post a Comment

Markup Key:
- <b>bold</b> = bold
- <i>italic</i> = italic
- <a href="http://www.fieldofscience.com/">FoS</a> = FoS