|
| Botrychium lanceolatum
(Gmel.) Angstr. |
|
| |
| TAXONOMY |
| |
| Family: |
Ophioglossaceae |
| Genus: |
Botrychium |
| |
| Species Synonyms: |
none |
| Common Names: |
lanceleaf grapefern
lanceleaf moonwort
triangle moonwort |
| |
| DISTRIBUTION |
| |
| Canada: |
Yukon Territory – western Mackenzie District,
south to British Columbia – Saskatchewan |
| Saskatchewan: |
central Saskatchewan; Buffalo Narrows –
Brockelbank Hill |
| Ecoregion: |
Mid-Boreal Upland, Mid-Boreal Lowland |
| |
| HABITAT |
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| Saskatchewan: |
open woods and grassy slopes |
| |
| RARITY STATUS |
| |
Provincial
Status According
to Harms (2003): |
Endangered |
| Nature Conservancy
Status: |
G5 S1 |
Saskatchewan
Species at
Risk Status: |
None |
| COSEWIC Status:
|
None |
| |
| Botrychium lanceolatum
is endangered in Saskatchewan because it is extremely rare and is limited
to two general locations of the province. The populations are almost always
locally sparse. No immediate threats have been identified for this species. |
| |
| SPECIES
DESCRIPTION |
| |
| Height: |
< 15 cm, stout and fleshy
|
| Fronds: |
solitary, sterile blade sessile
or short-stalked, stalk 0 – 1 mm long, attached above the middle of
the plant, blade to 4.5 cm long, to 4 cm wide, deltate, 1 – 2 times
pinnate, dull greyish-green; pinnae on sterile blade lobed, in up to 5 pairs,
ascending, approximate, distance between first and second pinnae equal to
or slightly larger than distance between second and third pairs; fertile
blade 1 – 2.5 times as long as the sterile blade, 1 – 3 times
pinnate, divided into several equal branches, paniculate |
| Sporangia: |
crowded laterally on branches,
globose |
| Spores: |
small, yellow |
| |
| BOTRYCHIUM
KEY FOR SPECIES FOUND IN SASKATCHEWAN |
| |
| 1 Sterile blades 5 – 25 cm long,
deltate, 2 – 4 times pinnately compound; fertile blades may be absent;
plants over 12 cm tall |
2 |
| 1 Sterile blades 2 – 5 cm long
or absent, oblong to linear or deltate, simple to pinnate or pinnatifed;
fertile blades always present; plants generally less than 15 cm tall |
3 |
| |
|
2 Sterile blades thin; sheaths on
stipe open; fertile blades, when present, arising from high on common stalk;
common stalk usually longer than 10 cm, glabrous
|
B. virginianum |
| 2 Sterile blades herbaceous or thick
to leathery; sheaths on stipe closed; sporophores, when present, arising
from the basal portion of the common stalk; common stalk less than 8 cm
long, somewhat hairy |
B. multifidum |
| |
|
| 3 Sterile blades linear to oblong,
simple to lobed; plants in deep shade under shrubs and trees |
B. simplex |
| 3 Sterile blades linear to deltate,
pinnate or absent; plants usually in exposed sites |
4 |
| |
|
| 4 Distance between first and second
pinnae greater than that between second and third pairs |
B. simplex |
| 4 Distance between first and second
pinnae equal to or slightly more than between second and third pairs |
5 |
| |
|
| 5 Sterile blades present, basal pinnae
fan-shaped to spatulate, midrib absent |
6 |
| 5 Sterile may be replaced by fertile
blade, basal pinnae oblanceolate to linear to ovate, midrib present |
9 |
| |
|
| 6 Sterile blades ovate to deltate |
B. simplex |
| 6 Sterile blades oblong to lanceolate |
7 |
| |
|
| 7 Sterile blades thick and leathery,
dark greyish-green to yellowish; basal pinnae broadly fan-shaped |
B. lunaria |
| 7 Sterile blades thin (except B.
campestre), dark to light green or yellowish; basal pinnae narrowly
fan-shaped or cuneate to linear |
8 |
| |
|
| 8 Sterile blades folded longitudinally,
up to 5 pairs of pinnae; plants of prairies or meadows |
B. campestre |
| 8 Sterile blades flat or folded only
at the base, up to 10 pairs of pinnae; plants of woodlands |
B. minganense |
| |
|
| 9 Sterile blade replaced by fertile
blade, resulting in two fertile blades |
B. paradoxum |
| 9 Sterile blade present, distinct
from fertile blade |
10 |
| |
|
| 10 Sterile blades subsessile, blades
deltate; fertile blades divided equally several times, about equal to 2.5
times longer than sterile blades |
B. lanceolatum |
| 10 Sterile blades ovate to oblong
or deltate; fertile blades with one main axis, 2 – 4 times longer
than sterile blades |
11 |
| |
|
| 11 Sterile blade long-stalked, stalk
equal to length of blade; few sporangia may be present on the basal pinnae
of sterile blade |
B. pedunculosum |
| 11 Sterile blade sessile to short-stalked,
stalk less than ¼ length of blade; sporangia never present on basal
pinnae of sterile blade |
B. hesperium |
|
