Cyperaceae taxon details
Carex cryptosperma Zika, D.S.Bell & L.J.Gross
1676749 (urn:lsid:marinespecies.org:taxname:1676749)
accepted
Species
terrestrial
Zika, P. F. et al. (2018). Two new sedges (Carex sect. Acrocystis, Cyperaceae) from Northwestern Mexico and Sourthern California. <em>Madroño.</em> 65(4): 192-200., available online at https://www.biodiversitylibrary.org/page/63629663#page/392/mode/1up
page(s): 196 [details]
page(s): 196 [details]
Holotype RSA, geounit California
Holotype RSA, geounit California [details]
Description Plants densely to loosely cespitose, rhizome internodes to 5.5 cm, forming tufts. Proximal sheaths reduced to scales,...
Description Plants densely to loosely cespitose, rhizome internodes to 5.5 cm, forming tufts. Proximal sheaths reduced to scales, bladeless, reddish-brown, smooth to scabrous on the prominent nerves, a few veins sometimes persisting as fibers at the plant base, or as
ladder-fibrillose sheath fronts. Distal sheaths with translucent fronts, often red-veined, apices concave to subtruncate; ligules obtuse, mostly longer than wide, margins scabrous; distal sheaths bearing blades. Leaves in numerous sterile rosettes; stem leaves 6-9 on proximal 1/3 of fertile stems, some blades taller than fertile stems, blades 4-16 mm long, 1-1.9 mm wide, shallowly V- or W-shaped in cross-section, sometimes folded, green not blue-green, with 5-10 prominent veins, adaxial surface scabrous, blade margins scabrous, apices filiform-triangular, densely scabrous, distally blunt or truncate, bristly
(20x). Stems 3.5-16 cm tall, triangular, scabrous. Basal inflorescences: spikes 1-4, 7-12 mm long, on erect scabrous peduncles 0.3-2.3 cm long, 0.2-0.55 mm wide, with 2-6 perigynia, mostly pistillate, occasionally androgynous with 2-3 terminal staminate scales. Non-basal portion of inflorescence: on elongate stems, with 1-3 spikes, the proximal pistillate, 5.5-8 mm long, with 2-4 perigynia, sessile or on peduncles to 3 mm long; overtopped by foliage; lowest non-basal inflorescence bract green at base, blade green, slightly keeled at least at base, otherwise flat, with several strong ribs, scabrous, leaf-like, 17-70 mm long, mostly longer than inflorescence; distal spike staminate, 6.5—8.5 mm long, 0.9-1.5 mm wide, 4-9 flowered; stamens 3 per scale, filaments white, anthers yellow, linear-oblong, 2.2—2.3 mm long, apical appendage 0.1 mm long, not bristly. Staminate scales: 3.1—5.1 mm long, green, bordered with red-brown at maturity, the translucent margins 0.2-0.5 mm wide, sometimes scabrous, with prominent or keeled pale midveins,
and 4-8 usually inconspicuous fine parallel lateral veins, apex blunt to acuminate, occasionally mucronate, mucro to 0.3 mm. Pistillate scales ovate-oblong to oblong, glasping at base, 3.9-6 mm long, 1.3—1.8 mm wide, usually shorter than perigynia but on basal spikes occasionally longer than perigynia, glabrous, scabrous, or sparsely pubescent, green central band with 1—3 strong midveins, the midveins often raised or forming a keel and scabrous, the non-green portion translucent or with a red-brown lateral band, with 6-10 inconspicuous fine parallel veins, distal margins entire to erose or sparsely short-ciliate, apex acute to truncate, if mucronate, the mucro to 0.1 mm and scabrous or ciliate. Perigynia elliptic to obovate, pubescent, 3.7-4.7 mm long, 1.5—2.1 mm wide; fresh stipes fleshy, oily, turgid and pale, dried stipes shriveled, 0.4-1.5 mm long; body plump, rounded-trigonous, at least some perigynia with 3-5 + prominent veins on | or more faces when mature; beak distinct, slightly flattened, erect or slightly incurved, scabrous and pubescent, 0.6—1.7 mm long (measured from inflection point), including white teeth 0.2-0.6 mm long; 3-styled. Achenes oblong-ovoid to oblong-obovoid, rounded-trigonous, surface reticulate or papillose (40x), brown, 2.1-2.7 mm long, 1.6—1.7 mm wide. [details]
ladder-fibrillose sheath fronts. Distal sheaths with translucent fronts, often red-veined, apices concave to subtruncate; ligules obtuse, mostly longer than wide, margins scabrous; distal sheaths bearing blades. Leaves in numerous sterile rosettes; stem leaves 6-9 on proximal 1/3 of fertile stems, some blades taller than fertile stems, blades 4-16 mm long, 1-1.9 mm wide, shallowly V- or W-shaped in cross-section, sometimes folded, green not blue-green, with 5-10 prominent veins, adaxial surface scabrous, blade margins scabrous, apices filiform-triangular, densely scabrous, distally blunt or truncate, bristly
(20x). Stems 3.5-16 cm tall, triangular, scabrous. Basal inflorescences: spikes 1-4, 7-12 mm long, on erect scabrous peduncles 0.3-2.3 cm long, 0.2-0.55 mm wide, with 2-6 perigynia, mostly pistillate, occasionally androgynous with 2-3 terminal staminate scales. Non-basal portion of inflorescence: on elongate stems, with 1-3 spikes, the proximal pistillate, 5.5-8 mm long, with 2-4 perigynia, sessile or on peduncles to 3 mm long; overtopped by foliage; lowest non-basal inflorescence bract green at base, blade green, slightly keeled at least at base, otherwise flat, with several strong ribs, scabrous, leaf-like, 17-70 mm long, mostly longer than inflorescence; distal spike staminate, 6.5—8.5 mm long, 0.9-1.5 mm wide, 4-9 flowered; stamens 3 per scale, filaments white, anthers yellow, linear-oblong, 2.2—2.3 mm long, apical appendage 0.1 mm long, not bristly. Staminate scales: 3.1—5.1 mm long, green, bordered with red-brown at maturity, the translucent margins 0.2-0.5 mm wide, sometimes scabrous, with prominent or keeled pale midveins,
and 4-8 usually inconspicuous fine parallel lateral veins, apex blunt to acuminate, occasionally mucronate, mucro to 0.3 mm. Pistillate scales ovate-oblong to oblong, glasping at base, 3.9-6 mm long, 1.3—1.8 mm wide, usually shorter than perigynia but on basal spikes occasionally longer than perigynia, glabrous, scabrous, or sparsely pubescent, green central band with 1—3 strong midveins, the midveins often raised or forming a keel and scabrous, the non-green portion translucent or with a red-brown lateral band, with 6-10 inconspicuous fine parallel veins, distal margins entire to erose or sparsely short-ciliate, apex acute to truncate, if mucronate, the mucro to 0.1 mm and scabrous or ciliate. Perigynia elliptic to obovate, pubescent, 3.7-4.7 mm long, 1.5—2.1 mm wide; fresh stipes fleshy, oily, turgid and pale, dried stipes shriveled, 0.4-1.5 mm long; body plump, rounded-trigonous, at least some perigynia with 3-5 + prominent veins on | or more faces when mature; beak distinct, slightly flattened, erect or slightly incurved, scabrous and pubescent, 0.6—1.7 mm long (measured from inflection point), including white teeth 0.2-0.6 mm long; 3-styled. Achenes oblong-ovoid to oblong-obovoid, rounded-trigonous, surface reticulate or papillose (40x), brown, 2.1-2.7 mm long, 1.6—1.7 mm wide. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex cryptosperma Zika, D.S.Bell & L.J.Gross. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1676749 on 2025-09-14
Date
action
by
2024-12-10 11:47:54Z
unchecked
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Zika, P. F. et al. (2018). Two new sedges (Carex sect. Acrocystis, Cyperaceae) from Northwestern Mexico and Sourthern California. <em>Madroño.</em> 65(4): 192-200., available online at https://www.biodiversitylibrary.org/page/63629663#page/392/mode/1up
page(s): 196 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 196 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Description Plants densely to loosely cespitose, rhizome internodes to 5.5 cm, forming tufts. Proximal sheaths reduced to scales, bladeless, reddish-brown, smooth to scabrous on the prominent nerves, a few veins sometimes persisting as fibers at the plant base, or asladder-fibrillose sheath fronts. Distal sheaths with translucent fronts, often red-veined, apices concave to subtruncate; ligules obtuse, mostly longer than wide, margins scabrous; distal sheaths bearing blades. Leaves in numerous sterile rosettes; stem leaves 6-9 on proximal 1/3 of fertile stems, some blades taller than fertile stems, blades 4-16 mm long, 1-1.9 mm wide, shallowly V- or W-shaped in cross-section, sometimes folded, green not blue-green, with 5-10 prominent veins, adaxial surface scabrous, blade margins scabrous, apices filiform-triangular, densely scabrous, distally blunt or truncate, bristly
(20x). Stems 3.5-16 cm tall, triangular, scabrous. Basal inflorescences: spikes 1-4, 7-12 mm long, on erect scabrous peduncles 0.3-2.3 cm long, 0.2-0.55 mm wide, with 2-6 perigynia, mostly pistillate, occasionally androgynous with 2-3 terminal staminate scales. Non-basal portion of inflorescence: on elongate stems, with 1-3 spikes, the proximal pistillate, 5.5-8 mm long, with 2-4 perigynia, sessile or on peduncles to 3 mm long; overtopped by foliage; lowest non-basal inflorescence bract green at base, blade green, slightly keeled at least at base, otherwise flat, with several strong ribs, scabrous, leaf-like, 17-70 mm long, mostly longer than inflorescence; distal spike staminate, 6.5—8.5 mm long, 0.9-1.5 mm wide, 4-9 flowered; stamens 3 per scale, filaments white, anthers yellow, linear-oblong, 2.2—2.3 mm long, apical appendage 0.1 mm long, not bristly. Staminate scales: 3.1—5.1 mm long, green, bordered with red-brown at maturity, the translucent margins 0.2-0.5 mm wide, sometimes scabrous, with prominent or keeled pale midveins,
and 4-8 usually inconspicuous fine parallel lateral veins, apex blunt to acuminate, occasionally mucronate, mucro to 0.3 mm. Pistillate scales ovate-oblong to oblong, glasping at base, 3.9-6 mm long, 1.3—1.8 mm wide, usually shorter than perigynia but on basal spikes occasionally longer than perigynia, glabrous, scabrous, or sparsely pubescent, green central band with 1—3 strong midveins, the midveins often raised or forming a keel and scabrous, the non-green portion translucent or with a red-brown lateral band, with 6-10 inconspicuous fine parallel veins, distal margins entire to erose or sparsely short-ciliate, apex acute to truncate, if mucronate, the mucro to 0.1 mm and scabrous or ciliate. Perigynia elliptic to obovate, pubescent, 3.7-4.7 mm long, 1.5—2.1 mm wide; fresh stipes fleshy, oily, turgid and pale, dried stipes shriveled, 0.4-1.5 mm long; body plump, rounded-trigonous, at least some perigynia with 3-5 + prominent veins on | or more faces when mature; beak distinct, slightly flattened, erect or slightly incurved, scabrous and pubescent, 0.6—1.7 mm long (measured from inflection point), including white teeth 0.2-0.6 mm long; 3-styled. Achenes oblong-ovoid to oblong-obovoid, rounded-trigonous, surface reticulate or papillose (40x), brown, 2.1-2.7 mm long, 1.6—1.7 mm wide. [details]
