cystocarps

1
cystocarps
2
Gracilaria multinucleate tubular nutritive
cells to roof, to base
Gracilariopsis uninucleate conjunctor
cells at base
TAPPING BACK
Hydropuntia multinucleate tubular nutritive
cells at base of cystocarp
Gracilariophila (parasite)
3
Gracilaria
Gracilariopsis
in shallow or deep pits
super- ficial
in deep pits, con- necting to vege- tative
cells
Hydropuntia
Gracilariophila
male structures
4
Gracilaria
Flat species

• G. curtissiae
• G. intermedia
• G. smithsoniensis
• G. galetensis
• G. hayi
• G. domingensis
• G. flabelliformis
• G. sp.
• G. lacinulata

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Gracilaria smithsoniensis
Dichotomaria aff. marginata
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Gracilaria smithsoniensis
7
Gracilaria smithsoniensis
8
Gracilaria curtissiae
-thick thallus thinner lateral blade-like
proliferations -often with small teeth
9
G. curtissieae
10
Gracilaria intermedia
11
Gracilaria intermedia
12
Gracilaria galetensis
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G. galetensis
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Gracilaria hayi
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Gracilaria domingensis
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Gracilaria domingensis
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G. flabelliformis
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G. flabelliformis
male structures in shallow pits
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Gracilaria sp.
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G. lacinulata
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• Rudimentary key to the external habit of the flat
  
• species of Gracilariaceae from Bocas
• Thallus brown, leathery-thick, with thinner
  lateral blade-like
• proliferations main blades with or
  without tiny marginal teeth
• ------------ G. curtissiae

• Thallus not leathery-thick, of various shapes and
  colors ---
• --------------------------------------------
  ------------------------------2

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• Stalk and holdfast hard and cartilaginous, with
• secondary cortex blades even-sized,
  congested,
• dark wine red-brown ---
• Gracilaria sp.

• Stalk and holdfast not hard and cartilaginous --
• ---------------------------------------------
  --------------3

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3. thallus not pseudodichotomous
--------------------4
3. thallus pseudodichotomous --------
----------------6
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4. Main axes with pronounced tooth-like marginal
projections ----- ------------------------------
------- G. domingensis 4. Blades without
tooth-like projections -------------------- 5
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5. Blades with leading axis and side branches
--------- G. intermedia 5. Blades
without leading axes, strap-shaped ------
G. lacinulata
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5. No leading axis, axes of same-sized with,
narrow apical regions -------------G.
smithsoniensis (in part) 5. Leading
axis, varying apical region ------ 6
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6. Narrow apical branch subdichotomies ----- G.
flabelliformis 6. Branches with
constant diameter 7
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7. Branches narrow, with wide angles at tips ---
G. smithsoniensis (in part) 7.
Branches without wide angles 8
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8. Blades with narrow pseudodichotomies-----
G.galetensis 9. Blades thin, with broad,
round pseudodichotomies-- G. hayi
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Cylindrical species
Gracilaria cervicornis Gracilaria aff.
cervicornis Hydropuntia cornea Hydropuntia
caudata Gracilariopsis aff. panamaensis
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Gracilaria cervicornis
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G. aff. cervicornis
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Gracilaria aff. cervicornis
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Hydropuntia cornea
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Hydropuntia caudata
(thinner G. cornea)
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Hydropuntia caudata