zac9 的鑑定
照片/聲音
什麼
屬 Ceratium觀察者
omgwaitwhat描述
Supplementary Videos
1) https://drive.google.com/open?id=1E5Blc4MXtIwSXocR8OHIx2jH3bcsQRno
2) https://drive.google.com/open?id=1kAv-EzqmJflQaDaUzkp_pRyRwcCPQEwI
Pictures were either 400x or 1000x magnification under a light microscope and from a pond sample from a light-exposed area on the University of South Florida campus. The following species is in the genus of Ceratium with its common characteristics of hollow horns and depressed ventral area.
This species of Ceratium (see videos) include a long apical horn and unequal antapical horns.
Likely might it be specifically C. hirundinella, a freshwater species, according to the second link provided and due to it being obtained from freshwater sources and also pale yellow. The fourth link suggests that the species might be either C. lineatum or C. kofoidii.
http://oceandatacenter.ucsc.edu/PhytoGallery/Dinoflagellates/ceratium.html
http://oceandatacenter.ucsc.edu/PhytoGallery/Freshwater/Ceratium.html
https://phytoplanktonguide.lumcon.edu/display/
https://www.researchgate.net/file.PostFileLoader.html?id=5543575cf079ed77408b4582&assetKey=AS%3A273768600014849%401442282928872
照片/聲音
什麼
濕地松 (Pinus elliottii)觀察者
emsaari描述
Observed on 10/11/18 at 2:30PM
Weather: approximately 84 degrees F, slightly cloudy, warm, no rain at the time but during a particularly rainy week, no wind
Habitat: in a county park, surrounded by other plants and wildlife, tallest tree in the area so not shaded by other plants
Original ID: Pinus elliottii, based on the description and pictures from https://www.discoverlife.org/mp/20q?guide=Trees&cl=US/FL and http://nwdistrict.ifas.ufl.edu/hort/2016/06/01/dont-be-a-sap-knowing-the-difference-between-florida-pines/ and https://edis.ifas.ufl.edu/pdffiles/FR/FR00300.pdf; long needles, large somewhat thinner cones, spiral arrangement of needles, smallest branches are about thumb sized in diameter
照片/聲音
什麼
濕地松 (Pinus elliottii)觀察者
emsaari描述
Observed on 10/11/18 at 2:30PM
Weather: approximately 84 degrees F, slightly cloudy, warm, no rain at the time but during a particularly rainy week, no wind
Habitat: in a county park, surrounded by other plants and wildlife, tallest tree in the area so not shaded by other plants
Original ID: Pinus elliottii, based on the description and pictures from https://www.discoverlife.org/mp/20q?guide=Trees&cl=US/FL and http://nwdistrict.ifas.ufl.edu/hort/2016/06/01/dont-be-a-sap-knowing-the-difference-between-florida-pines/ and https://edis.ifas.ufl.edu/pdffiles/FR/FR00300.pdf; long needles, large somewhat thinner cones, spiral arrangement of needles, smallest branches are about thumb sized in diameter
照片/聲音
什麼
祕魯水丁香 (Ludwigia peruviana)觀察者
mulaparthi_s_902描述
A flower with yellow heart- shaped petals that get lighter near the center. Curved filaments with yellow anthers in center. Connected to a green stem, with leaves. Flower has a diameter of about 1.5 inches. Part of Kingdom Plantae as a seeded vascular plant.
Habitat: Found in nature park in a grassy area next to a tree near the ground.
Defining characteristic: presence of flower shows it is an angiosperm. Its four large yellow petals separated by green sepals help define it as this species.
Geographic distribution:Florida, Texas, Georgia, Alabama,Mississippi
http://www.wildsouthflorida.com/peruvian.primrose-willow.html#.XHAFzVBKiUk
照片/聲音
什麼
美洲蛇鵜 (Anhinga anhinga)觀察者
fcaidens描述
This bird had brown and black wings with white spots at the top of the wings. It was about 3/4 foot tall, 2/3 foot wide, and about 1/3 foot long. It was drying its wings out while standing on a pole. It stayed there and dried its wings for about 15 minutes until it flew away.
統計
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