Species |
Specimen/ station |
Length of striatum on the stem (cm) |
Number of ridges on striatum from one view |
Striatum description |
B. patula
|
G35430 |
~ 1.10 |
3 |
Not distinct, starts at attachment point and extends to the apex of colony |
B. seculata
|
G61917 |
~ 1.60 |
5 |
Very distinct, starts near attachment point, ending midway up unpinnulated portion of stem |
B. patula
(van Pesch 1914)
|
74 A |
no data |
no data |
No data |
B. seculata
|
G61977 |
~ 1.50 |
Unclear |
Not distinct, starts near attachment point, ending midway up unpinnulated portion of stem |
B. seculata
|
G61966 |
~ 4.50 |
3 |
Somewhat distinct and twisted around the stem, starts at attachment point and extends to the top of the unpinnulated portion of the stem. |
B. seculata
|
G62049 |
Not visible |
Not visible |
Not visible |
B. seculata
|
G61979 |
~ 2.00 |
4 |
Ridges become distinct at about mid-way up unpinnulated portion of stem, and becoming less distinct near first set of pinnules |
B. seculata
|
G73228 |
~ 1.50 |
2–3 |
Not distinct, starts.5 cm above attachment point, ending midway up unpinnulated portion of stem |
B. seculata
|
G35428 |
~ 2.50 |
3–4 |
Not distinct, starts near attachment point, ending midway up unpinnulated portion of stem |
B. seculata
|
G61978 |
~ 2.50 |
~3 |
Not distinct, starts near attachment point, ending midway up unpinnulated portion of stem |
B. seculata
|
USNM 53430 |
~ 2.50 |
6 |
Distinct, slightly twisted, spines along some ridges, starts 7 mm above basal end of stem and |
(Opresko 2005)a |
extends midway up the unpinnulated portion of the stem |
B. seculata
|
G61981 |
~ 2.75 |
4 |
Very distinct, twisted around stem, starts near attachment point, ending midway up unpinnulated portion of stem |
B. patula
(van Pesch 1914)
|
214 B |
no data |
no data |
No data |
B. patula
(Pasternak 1977)
|
St. 453 III |
no data |
no data |
No data |
B. patula
|
214 A |
no data |
no data |
No data |
(van Pesch 1914) |
B. seculata
|
G61948 |
~ 6.00 |
5–6 |
Very distinct, starts.5cm from attachment point and extends to the first set of pinnules |
B. patula
(Pasternak 1977)
|
St. 453 II |
no data |
no data |
No data |
B. seculata
|
G61967 |
~ 7.60 |
4 |
Somewhat distinct, slightly twisted, starts at attachment point and extends to the top of the unpinnulated portion of the stem. |
B. patula
(Pasternak 1977)
|
St. 190 |
no data |
no data |
No data |
B. patula
(van Pesch 1914)
|
74 B |
no data |
no data |
No data |
B. patula
(Brook 1889)
a
|
195 |
no data |
no data |
No data |
B. patula
|
G61980 |
~ 7.50 |
5–6 |
Starts 1 cm above attachment point and extends to midway up unpinnulated portion |
B. patula
(Cooper 1909)
|
Plate 41 |
no data |
no data |
No data |