ephedra pollen

Listing 1 - 10 from 11 for ephedra pollen
English [9]

pollen grain morphology ephedra
... Ephedra pollen is particularly abundant (25%) in modern pollen samples from the Grand Canyon (King and Sigleo, 1973). Pollen light micrograph: Ephedra (joint-fir, Mormon-tea) has the polyplicate pollen ...
www.geo.arizona.edu

Welwitschia
... s Word Index Noteworthy Plants Trivia Lemnaceae Biology 101 Botany Search Division Gnetophyta Welwitschia And Ephedra Remarkable Genera Of Gymnosperms Welwitschia mirabilis in the Namib Desert of southwestern Africa. The ... for tiny scale-like leaves at the nodes. The small male cones produce pollen. The male pollen-bearing cones of Ephedra funerea: A species of "Mormon tea" or "joint fir" native to ...
waynesword.palomar.edu

Ephedra antisyphilitica, clapweed
... Ephedra antisyphilitica, clapweed Ephedra antisyphilitica Berl. ex C. A. Mey. Family: Ephedraceae Common names: ... mm (0.05-0.15 in) long, entire, sharp-pointed, often early-deciduous. Pollen cones 1-2 per node, ovoid, 4-8 mm (0.15-0. ... supposed capacity of the plant to prevent and cure sexually transmitted diseases. Ephedra is derived from a Greek word meaning horsetail; antisyphilitica refers to its ...
www.biosurvey.ou.edu

UGA Plant Biology | Greenhouses | Non-Flowering Plants
... usually produces more female cones than leaves click for larger photo Welwitschia mirabilis display with Ephedra spp. in the background click for larger photo Ceratozamia robusta with developing leaves and ... W. mirabilis with female cones click for larger photo Encephalartos horridus click for larger photo Pollen bearing male cones click for larger photo Cycas wadei female cone with two whorls ...
www.botany.uga.edu

Gymnosperms
... Pollination is by wind, with ciliated sperm swimming from the pollen tube to the egg in the archegonium. IV. DIVISION GNETOPHYTA A. Ephedra - "Mormon tea" B. Gnetum - widespread tropical shrub C. ... near to the developing gametophyte. Now the male gametophyte begins to germinate from the pollen grain, i.e. pollen tube. Thus both male & female gametophytes develop within the ovule, and are ...
www.cs.cuc.edu

Gymnosperms for lab
... ; ovule, l.s., embryo; mature embryo. Specimens - life history set; male cones; female cones; seeds. Ephedra (1, 2,3, ) Female strobili, male strobili, specimens in glass tubes. Welwitschia (1,2, 3 ... ,4, ) Pinus Male - entire strobilus (1, 2 ); staminate strobilus (1, 2, 3, 4,) ; pollen ( 1 ), w.m.; pollen tubes. Female - cone (young 1, 2 ), early med. l.s. (1 , 2, 3, ); ovule ...
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Pollen and Spore Images Lycophyta
... Ephedra Ephedraceae UofAz Pollen of the Month 07/99 Ephedra Ephedraceae SEM Swedish Museum of Natural History Ephedra distachya-type Ephedraceae APD Ephedra nevadensis Ephedraceae UofAz Ephedra ...
www.geo.arizona.edu

Pinus edulis Engelm
... spp.), Mexican cliffrose (Cowania mexicana), Apache-plume (Fallugia paradoxa), skunkbush (Rhus trilobata), Mormon-tea (Ephedra spp.), yucca (Yucca spp.), opuntia (Opuntia spp.), broom snakeweed (Gutierrezia sarothrae), and buckwheat ... mid-June, staminate cones are mature, and ovulate cones become visible and receptive to pollen. Pollination is completed by the end of June when cone scales close, and ...
www.na.fs.fed.us

Pinus monophyfla Torr
... smoke (Gayophytum ramosissimum), stickseed (Lappula redowskii) and root sprouting shrubs: rabbitbrush (Chrysothamnus spp.), ephedra (Ephedra spp.), snowberry (Symphoricarpos spp.), and desert peach (Prunus andersonii) (3). The invasion of ... in late spring or early summer. The staminate cones usually begin to shed pollen by mid-June when the young ovulate cones are receptive to pollination. Growth ...
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NOAA Paleoclimatology Program - Fossil 70 Pollen Types
... Paleoclimatology Program - Fossil 70 Pollen Types Fossil 70 Pollen Types The following 71 pollen types comprise the Fossil-70 list (70 is approximate!) for North America. 1 Abies 37 ... Taxaceae undiff. 50 Brassicaceae 15 Cyrilla racemiflora 51 Caryophyllaceae 16 Empetrum-type 52 Cerealia 17 Ephedra 53 Chenopodiaceae/Amaranthaceae undiff. 18 Ericaceae 54 Cyperaceae 19 Ericales undiff. 55 Eriogonum 20 ...
www.ncdc.noaa.gov

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