11 de enero de 2021

Suggestions to Improve Lichen Identification


Please help improve identification of Lichen observations by following these suggestions.

Substrate
Make note of substrate to the best of your ability. If it's on rock, tell us what type of rock, or show us a clear, detailed picture of that rock's surface. If it's on a tree or shrub, say or show whether it’s on bark or exposed wood.

Size
Note the size of the lichen either in words or by including a pic with a ruler or a common object placed next to the lichen for scale.

Features
Try shooting with your cellphone through a hand lens, and try to record accurately these major visual elements: thallus color and texture; any bumps, wrinkles, folds, lines, circles, cracks, scratches, dots, dust/granule/powder piles, shapes, or other features/anomalies on or of the surfaces or edges of the thallus; the relationship between the lichen and its substrate (ie. clinging tight vs. lifting away.)

According to experts, Flavoparmelia caperata (bottom Lichen in photo) are fairly easy to determine in the wild, but in print and on screens the yellowish-green of the upper cortex may not be obvious. Flavopermelia caperata can look like Myelochroa aurulenta (top Lichen in photo). Click on the image above for more information.

Thank you @mollyopsis, @novapatch, @sadawolk and others for identifying New York City Lichen and for these suggestions to help us all make better observations.

Ingresado el 11 de enero de 2021 por danielatha danielatha | 3 comentarios | Deja un comentario

01 de enero de 2021

NYBG EcoFlora January EcoQuest Challenge

LOCATE LICHEN

Lichen are fungi that form associations with photosynthetic algae. Highly sensitive to air quality, Lichens were all but eliminated from New York City before federal regulations to curb pollution were enacted in 1970. Today Lichens have recolonized with nearly 100 species spread throughout the five boroughs, acting as bioindicators of improved air quality. You can help document the growing biodiversity of the City (and cleaner environment) by observing Lichens in your neighborhood. Visit the LOCATE LICHEN Project Page

To learn more about the fascinating world of Lichens, join us Monday, January 11, 2021 at 5:00 PM for New York City Lichens, an Urban Experience, by NYBG lichenologist, Dr. James Lendemer. The presentation is free and open to the public. Register Here

Ingresado el 01 de enero de 2021 por danielatha danielatha | 0 comentarios | Deja un comentario

18 de diciembre de 2020

Community Scientists Make Important Plant Discoveries

December 2020

Community scientists make important plant discoveries around New York City

New York City EcoFlora community scientists, Sara Rall, Susan Hewitt, Zihao Wang and Daniel Atha recently discovered two plant species never before documented in our region. Local residents Susan Hewitt, Sara Rall and Zihao Wang discovered a new plant for North America and a new species (and genus) for New York State. They made the discoveries this fall while observing the flora and fauna in the greater New York City region. Their discoveries are published in the latest issue of the online botanical journal, Phytoneuron.

More Information

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08 de diciembre de 2020

New York City EcoFlora Community Survey

Greetings New York City Nature Lovers,

The New York City EcoFlora was pioneered by you– 17,000 New Yorkers! Today there are five partner gardens across the country, each with their own EcoFlora modeled on our success.

You can help improve the EcoFlora model by participating in a brief online survey. Do you enjoy being a part of the New York City EcoFlora? Has it increased your appreciation of plant life or understanding of urban biodiversity? Let us know what you think by December 15th.

Take the Community Survey

Thank you!


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01 de diciembre de 2020

NYBG EcoFlora December EcoQuest Challenge

FLAG PHRAG

Common Reed (Phragmites australis subsp. australis), also known simply as “Phrag” is very aggressive in disturbed sites and forms extensive monospecific stands (e.g. New Jersey Meadowlands). Estuaries and marshes are some of the most productive ecosystems on earth and their transformation to monocultural stands of one non-native species such as Phrag degrades their dynamic structure and diversity.

More Information

iNaturalist Project Page

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01 de noviembre de 2020

NYBG EcoFlora November EcoQuest Challenge

BEHOLD BACCHARIS

Groundsel Tree (Baccharis halimifolia) is an important salt marsh species that helps to reinforce and stabilize vulnerable shorelines and provide cover for wildlife. One of the few indigenous shrubs to flower in fall, its nectar provides food for many insects, including Beetles, Bees, Flies, Wasps, and Butterflies. Your observations can help document the versatility and beauty of this often overlooked native plant.

More Information

Project Page

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01 de octubre de 2020

NYBG EcoFlora October EcoQuest Challenge

REPORT MUGWORT

Common Mugwort (Artemisia vulgaris) is a Eurasian perennial in the Sunflower family (Asteraceae). Multiple introductions to North America beginning in the 1600s and subsequent genetic crossing have resulted in a range of morphological diversity, especially in leaf form. Outside its native range it is highly invasive, spreading by seed and underground rhizomes and forming monocultures.

How many Common Mugwort can you find by October 31?

Follow projects stats

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01 de septiembre de 2020

NYBG EcoFlora September EcoQuest Challenge

JUMPSEED JOURNEY

Jumpseed (Persicaria virginiana) is a perennial plant in the Buckwheat family (Polygonaceae) indigenous to eastern North America. Formerly in the same genus as the dreaded Japanese Knotweed, Jumpseed is an excellent replacement in locations where Japanese Knotweed has been removed. Ripe Jumpseed fruit are held under tension and are thrown several feet when touched, hence the common name. Sawfly larvae are known to feed on Jumpseed leaves, creating neat round holes, apparently without great harm to the plants. How many Jumpseed plants are in your neighborhood?

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02 de agosto de 2020

NYBG EcoFlora August EcoQuest Challenge

The August EcoQuest Challenge is MONARCHS AND MILKWEEDS

Scientists estimate that Monarch Butterflies (Danaus plexippus) have declined by more than half since last year. From January through July, 2019, New Yorkers observed 201 Monarch Butterflies in the five boroughs. This year, only 133 have been observed (even though observations overall are up 6%). Milkweed plants (Asclepias) are the only food source for Monarch Butterfly caterpillars. How many can you find?

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02 de julio de 2020

NYBG EcoFlora Update July 2020

The July EcoQuest Challenge is CLIMBING THE WALLS

Save time and ensure your observations are included by selecting the project CLIMBING THE WALLS using the mobile or desktop program.

The Latin word for wall is murus, the origin of the word mural. Many plant species are able to grow on walls, particularly those adapted to lime, a common ingredient in concrete and mortar. Ferns, grasses, and even some trees are often found growing on walls. How many different species can you find climbing the walls where you live? Lichens count too!

Ingresado el 02 de julio de 2020 por danielatha danielatha | 0 comentarios | Deja un comentario