Pyrola


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Pyrola

 

a genus of plants of the family Pyrolaceae. They are perennial grasses with creeping rhizomes. Their coriaceous leaves are located on the lower part of the stem. The flowers are pentamerous, and the corolla may be white, greenish, or reddish. The fruit is a pentagonal pod. There are about 40 species in the northern hemisphere, chiefly in temperate latitudes. In the USSR there are seven species, growing chiefly in the forest zone, in mossy coniferous and mixed forests. The most common species are Pyrola rotundifolia and Pyrola minor. The plants of this genus are sometimes grown for decoration in shady areas in parks and gardens.

References in periodicals archive ?
Floral scent and intrafloral scent differentiation in Moneses and Pyrola (Pyrolaceae).
54 * Variables are the same as those in the gridwise analysis but were calculated at a smaller scale (mean elevation was excluded, and the importance value of Pyrola secunda did not pass the inclusion criterion for the KMO test).
A different 3-base insertion is shared by Orthilia secunda and Pyrola picta.
It is noteworthy that tetrads also occur in Moneses and Pyrola (within Monotropoideae); the presence of tetrads in these taxa is most parsimoniously interpreted as a parallelism (Fig.
Damaged Habitat: Exposed substrate defined above Exposed peat dead moss Mastodon flower, ragwort Senecio congestus Miscellaneous : Moss any live moss Grass grass or sedge, live or dead Lichen various species Wintergreen Pyrola spp.
La segregacion de este grupo de tendencia orofila frente a los hayedos acidofilos orocantabricos (Blechno spicant- Fagetum sylvaticae y variante acidofila de la Omphalodo nitidae-Fagetum sylvaticae)(Tabla 3) queda claramente establecida por la ausencia en los hayedos estudiados de un nutrido grupo de especies presentes en estos ultimos, entre las que se pueden destacar Cicerbita plumieri, Corydalis cava, Dryopteris carthusiana, Dryopteris expansa, Festuca altissima, Galium rotundifolium, Genista florida, Gymnocarpium dryopteris, Melica uniflora, Mycelis muralis, Poa chaixii, Poa nemoralis, Pyrola minor, Stellaria nemorum, etc.
There are no pollination studies for the neotropical species of Pieris, nor for the species of Monotropoideae (Monotropa, Pterospora) or Pyroloideae (Chimaphila, Orthilia, Pyrola ), but their temperate counterparts are all entomophilous, and this is probably true in neotropical members as well.
Subfamily Arbutoideae Arbutus 10/5 Arctostaphylos 60/2 Comarostaphylis (a,b) 10/10 Subfamily Monotropoideae Monotropa 2/2 Pterospora 1/1 Subfamily Pyroloide Chimaphila 5/2 Orthilia 1/1 Pyrola 20-30/1 Subfamily Rhododendroidcae (c) Bejaria (a,d) 15/14 Kalmia 7/1 Ledothamms (a) 7/7 Subfamily Vaccinioideae Tribe Gaultherieae Gaultheria 115/37 Pernettya 14/4 Tepuia (a) 7/7 Tribe Lyonieae Agarista (a) 31/29 Lyonia 36/27 Pieris 7/1 Tribe Vaccinieae Anthopteropsis (a) 1/1 Anthopterus (a) 12/12 Cavendishia (a) 130/130 Ceratostema (a) 35/35 Demosthenesia (a) 9/9 Didonica (a) 4/4 Diogenesia (a) 13/13 Disterigma (a) 40/40 Gaylussacia 50/42 Gonocalyx (a) 10/10 Lateropora (a) 3/3 Macleania (a) 40/40 Mycerinus (a) 3/3 Notopora (a) 5/5 Oreathes (a) 7/7 Orthaea (a) (incl.
But in a few taxa-for example, Gleditsia triacanthos (Tucker, 1991); species of Clethra, Juglans, Digitalis, Convallaria, Campanula, and Pyrola (Eames, 1961 )--racemes usually have a terminal flower, whereas others in some of the same genera (G.
1 - - - 1 2 8 Silene acaulis 1 - - 1 - 2 39 Armeria scabra - - - - - - 1 Pyrola grandiflora - 1 - - - 1 1 Arctostaphylos alpina - - - - - - 1 Cassiope tetragona - 1 - 1 - 2 19 Vaccinium uliginosum coll.