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Cyperaceae taxon details

Carex atrospicata Rink & Licher

1786036  (urn:lsid:marinespecies.org:taxname:1786036)

accepted
Species
marine, brackish, fresh, terrestrial
recent only
Rink, G.; Licher, M. (2024). <i>Carex atrospicata</i> (Cyperaceae), sp. nov., from the Rocky Mountains. <em>Phytoneuron.</em> 2024-92: 1– 21.
page(s): 4 [details] Available for editors  PDF available [request]
Holotype  ASC
00130749, geounit Montana  
Holotype ASC
00130749, geounit Montana [details]
Description Plants perennial, loosely cespitose in small clumps from short rhizomes; rhizomes 2-3 mm
thick, the maximum internode...  
Description Plants perennial, loosely cespitose in small clumps from short rhizomes; rhizomes 2-3 mm
thick, the maximum internode length to 0.5 cm long. Stems 16-45(-68) cm tall, 0.8-1.5 mm thick,
rounded to sharply angled, smooth below, sometimes slightly scabrid above, exceeding the leaves.
Leaves 4-9 per culm, clustered towards the base, 1-several blades from the lower third of the culm,
blades flat to V-shaped, lax, green, 2-4(-6.1) mm wide (wider blades), up to 20 mm long. Inflorescence 5-40 cm long, consisting of 10-90% of plant height, composed of 1-3 clustered sessile to sub-sessile terminal spikes and 2-3(-4) peduncled lower spikes, the terminal spike gynecandrous, staminate, mixed, androgynous, or pistillate, 8-13 mm long, 3-9 mm wide, the lower lateral spikes pistillate, 7-19 mm long, 4-10 mm wide, mostly erect, lowest spike often on a peduncle 3.5-23 cm long, the lateral spikes infrequently subtended by smaller sessile spikes originating from the peduncle, all spikes dark due to dark scales and perigynia; proximal inflorescence bract shorter than the inflorescence, the sheath 7-50 mm long, sheath tip width at mouth 1-2(-2.5) mm, mostly hyaline, but some with brownish, mottled or slightly purplish tint. Pistillate Scales 3-5 mm long, just over half as long (to nearly as long) as the perigynia, uniformly dark brown to black and shiny, the midrib absent or to 0.1 mm wide, usually lighter colored, sometimes slightly excurrent, usually extending to the top of the scale, the scale tip acute to rounded. Perigynia narrowly elliptic to lanceolate, tapered at both ends with an indistinct beak, not inflated, dark brown to black and shiny when mature, sometimes pale near the base, usually solid-colored rather than mottled, glabrous (rarely with a few small prickles on the upper margins), 4- 6(-7) mm long, 1-2 mm wide, ascending, unveined to rarely with up to five veins on each face, the marginal ribs light colored; orifice not hyaline, bidentate, the teeth 0.2-0.3(-0.5) mm long. Anthers (1.7-)2-3 mm long. Stigmas 3. Achenes trigonous, 1.6-2.5 mm long, 0.6-0.8 mm wide, the stipe and apiculus obvious. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex atrospicata Rink & Licher. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1786036 on 2025-09-13
Date
action
by
2024-12-28 16:18:48Z
created
2025-03-07 07:56:04Z
changed
2025-03-11 11:19:03Z
changed

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Nomenclature

original description Rink, G.; Licher, M. (2024). <i>Carex atrospicata</i> (Cyperaceae), sp. nov., from the Rocky Mountains. <em>Phytoneuron.</em> 2024-92: 1– 21.
page(s): 4 [details] Available for editors  PDF available [request]

 
 Present  Inaccurate  Introduced: alien  Containing type locality 
   

Holotype ASC
00130749, geounit Montana [details]
From editor or global species database
Description Plants perennial, loosely cespitose in small clumps from short rhizomes; rhizomes 2-3 mm
thick, the maximum internode length to 0.5 cm long. Stems 16-45(-68) cm tall, 0.8-1.5 mm thick,
rounded to sharply angled, smooth below, sometimes slightly scabrid above, exceeding the leaves.
Leaves 4-9 per culm, clustered towards the base, 1-several blades from the lower third of the culm,
blades flat to V-shaped, lax, green, 2-4(-6.1) mm wide (wider blades), up to 20 mm long. Inflorescence 5-40 cm long, consisting of 10-90% of plant height, composed of 1-3 clustered sessile to sub-sessile terminal spikes and 2-3(-4) peduncled lower spikes, the terminal spike gynecandrous, staminate, mixed, androgynous, or pistillate, 8-13 mm long, 3-9 mm wide, the lower lateral spikes pistillate, 7-19 mm long, 4-10 mm wide, mostly erect, lowest spike often on a peduncle 3.5-23 cm long, the lateral spikes infrequently subtended by smaller sessile spikes originating from the peduncle, all spikes dark due to dark scales and perigynia; proximal inflorescence bract shorter than the inflorescence, the sheath 7-50 mm long, sheath tip width at mouth 1-2(-2.5) mm, mostly hyaline, but some with brownish, mottled or slightly purplish tint. Pistillate Scales 3-5 mm long, just over half as long (to nearly as long) as the perigynia, uniformly dark brown to black and shiny, the midrib absent or to 0.1 mm wide, usually lighter colored, sometimes slightly excurrent, usually extending to the top of the scale, the scale tip acute to rounded. Perigynia narrowly elliptic to lanceolate, tapered at both ends with an indistinct beak, not inflated, dark brown to black and shiny when mature, sometimes pale near the base, usually solid-colored rather than mottled, glabrous (rarely with a few small prickles on the upper margins), 4- 6(-7) mm long, 1-2 mm wide, ascending, unveined to rarely with up to five veins on each face, the marginal ribs light colored; orifice not hyaline, bidentate, the teeth 0.2-0.3(-0.5) mm long. Anthers (1.7-)2-3 mm long. Stigmas 3. Achenes trigonous, 1.6-2.5 mm long, 0.6-0.8 mm wide, the stipe and apiculus obvious. [details]