Wednesday, October 12, 2016

First 6 Specimens



Specimen #1
Figure 1: Fuligo Septica
Figure 2: Fuligo Septica under a dissecting scope




NameFuligo Septica
Common name:   Dog vomit
Family:  Physaraceae
Collection Date:  11/11/16
Habitat: In the woods on a decaying branch.  
Location: Behind the grass soccer field at Hiram College.
Description: Small bumps, darker because it is degrading.
Key used: http://www.discoverlife.org/20/q?guide=Mycetozoa_GSMNP
Keying Steps:

Identification guide, checked boxes for Aethalium and dark then hit search.  Top hit was Fuligo Septica.



Specimen #2
Figure 1: Conocephalum






















Figure 2: Conocephalum under a dissecting scope to better show the leaves.





















Figure 3: Leaf cells in Conocephalum

NameConocephalum
Common name: Snakeskin liverwort
Family: 
Conocephalaceae
Collection Date:  Sep 15, 2016
Habitat: On moist rock
Location: Nelson Ledges
Description: The leaf structure has large flat thallose.  The appearance is similar to snake skin and now sporophytes were present.  Found near running water.
Key used: Conard, H.S. and P.L. Redfearn, Jr. 1979. How to Know the Mosses and Liverworts 2nd Edition, McGraw-Hill, Boston, Mass.
Keying Steps:
Introduction Key pg. 19
1b. Plants with stems and leaves, the larger leaves in two rows on the stem and a third row of leaves...present, ...sporophyte short-lived.....4
4b. Plants ...leafy,...sporophyte with sphaerical or ellipsoidal capsule...5
5a. Plants strongly flattened, thalloid, without distinction between stem and leaf…  6.
6a.  Plants with opaque thallus that is … (p. 239) Order 6 Marchantiales
Pg 239.  Order Marchantiales
1a.  Air pores present without lens…8
8b. Thalli without gemmae and without marginal scales on underside…10
10a.  Air ore on a low mound of colorless cells… (pg.283.  Conocephalum)
Genus Conocephalum

Specimen #3
Figure 1: Pylaisiadelpha tenuirostris lacking sporophytes.
Figure 2: Leaf shape of Pylaisiadelpha tenuirostris.
Figure 3: A single leaf of Pylaisiadelpha tenuirostris
NamePylaisiadelpha tenuirostris
Common name:   Rapunzel moss or Gentle moss
Family:  Hypnaceae
Collection Date:  Sep 7, 2016
Habitat: On moist fallen tree under a living tree
Location: Hiram College
Description: A very short vibrant green moss that was difficult to remove in whole pieces from a fallen tree. No showing sporophytes. 
Key used: Princeton Field Guides: Common Mosses of the Northeast and Appalachians.  McKnight, Karl B., Rohrer, Joseph R., Ward, Kirsten McKnight., and Perdrizet, Warren J. 2013
Keying Steps:
Introduction Key pg. 362
1. Terrestrial plants, usually not submerged under water; shoots mostly <10cm and stiffer; leaves <3 mm long…5
5.  Plants on dry rocks, tree trunks, tree bases, rotten logs or stumps…8
8.  Plants small; stem leaves <2 mm long; …9
9.  Stem and branch leaves similar in shape, .2-1.3 mm long…10
10.  Plants grow in mats lacking obvious radial growth, shiny to dull green; branches without clusters of tiny branchlets …11
11.  Branches very thin, <.25 mm in diameter, creeping along substrate; plants on rocks, rotting logs, and tree bark (commonly near base of tree)…13
13.  Plants appear to have been combed, branches running parallel to each other; leaves upon wetting not spreading much… Shwetschkeopsis fabronia and Pylaisiadelpha tenuirostris pg 227.

Specimen #4
Figure 1: Platydictya confervoides showing its wispy look without sporophytes.
Figure 2: Close up of Platydictya confervoides, to show its thin leaves and branches.
Figure 3: Leaves of Platydictya confervoides showing no midrib and lance shapes.
NamePlatydictya confervoides
Common name:   Algal Rock Moss
Family:  Hypnaceae
Collection Date:  Sep 7, 2016
Habitat: On rock under a living tree
Location: Hiram College
Description: This small green moss has very thin leaves.  No sporophytes were shown and it has a very mat like look.
Key used: Princeton Field Guides: Common Mosses of the Northeast and Appalachians.  McKnight, Karl B., Rohrer, Joseph R., Ward, Kirsten McKnight., and Perdrizet, Warren J. 2013
Keying Steps:
Introduction Key pg. 362
1. Terrestrial plants, usually not submerged under water; shoots mostly <10 cm and stiffer; leaves <3 mm long…5
5. Plants on dry rocks…8
8. Plants small; stem leaves <2 mm long…9
9.  Stem and branch leaves similar in shape…10
10.  Plants grow in mats, lacking obvious radial growth, shiny to dull green; branches without clusters of tiny branchlets…11
11.  Branches very thin, <.25 mm diameter, creeping along substrate; plants on rocks….13
13.  Plants appear less orderly, branches running in various directions; leaves upon wetting spreading…14
14. Leaves .1-.5 mm long, tips straight; branchlike threads …15
15.  Plants on calcareous rock; leaves .1-.3 mm long … Platydictya confervoides pg.229

Specimen #5
Figure 1: Oxyrrhynchium hians showing with spores that have bent capsules.




















Figure 2: Oxyrrhynchium hians under a dissecting scope to show the curvature of the spores and more of the leaf structure. 

 
Figure 2: Leaves of Oxyrrhynchium hians showing a more ovate structure that comes to an abrupt point with a midrib.
NameOxyrrhynchium hians
Common name:   Spare rug moss
Family:  Brachytheciaceae
Collection Date:  Oct 10, 2016
Habitat: On rock under right next to small stream
Location: Hiram College
Description:
Key used: Princeton Field Guides: Common Mosses of the Northeast and Appalachians.  McKnight, Karl B., Rohrer, Joseph R., Ward, Kirsten McKnight., and Perdrizet, Warren J. 2013
Keying Steps:
Introduction Key pg. 358
1. Plants creeping or creeping with ascending shoot tips, top of plants rarely more than 3 cm above substrate…7
7. Plants terrestrial on soil, rocks…8
8. Leaves <2 mm long…9
9. Plants grow in tangled carpets or mats…10
10. Shoots lack cluster or tiny branchlets at tips…11
11. Plants with crowded, short, erect branches arising from creeping stems (carpet piles)…12
12. Leaves spreading at least 45 degrees when wet and capsules bent over…13.
13.  Leaves crowded, <1 cm long, capsule with long beak… pg 241

Specimen #6
Figure 1:  Filamentous green wispy strands of Spirogyra sp.
Figure 2: The distinct spiraling chloroplasts around the individual cells of Spirogyra sp.
NameSpirogyra sp.
Common name:  Water Silk
Family:  Zygnemataceae
Collection Date:  Oct 10, 2016
Habitat: In small pool in woods behind the soccer field
Location: Hiram College
Description: Small green filaments, no branching.

Keying Steps:
1. Algae are filamentous
2. Individual filaments are microscopic
3. Filaments are unbranched
4. Chloroplasts visible inside cells are green
5. Cell wall smooth and featureless, filaments are long and cells are not easily dissociated
6. Chloroplast ribbon shapped, spiraling around the cell.
7. Algal factsheet: Spirogyra