Key to the species of the genus Stenoglottis Lindley

1 Labellum with a spur 2
- Labellum without a spur 4
2 Labellum side lobes broad and entire, rounded or truncate, midlobe apex acute to rounded; spur tapering or sub-saccate, with or without nectar; bracts sheathing ovaries; leaves never spotted 3
- Labellum side lobes incised to deeply divided, midlobe narrow, attenuate; spur saccate, without nectar; bracts sheathing or recurved; leaves unspotted or sparsely spotted S. inandensis
3 Spur to 0.4-1.5 mm long, sub-saccate, straight, without nectar; labellum midlobe acute to obtuse; flowering from December S. woodii
- Spur 2.0-3.0 mm long, tapering, straight or recurved, nectar-producing; labellum midlobe rounded; flowering from late October S. macloughlinii
4 Labellum side lobes usually acute and entire, occasionally fringed or bifurcating; floral bracts usually sheathing ovaries entirely, occasionally recurved at the apex; auricles slender, approximately uniform in width or slightly wider at the apex, adnate to sides of the anther; self-pollinating 5
- Labellum side lobes usually with 2-5 fimbriae of variable length, sometimes ligulate and entire or shallowly incised; floral bracts recurved, not sheathing ovaries; auricles clavate with markedly swollen apex, projecting forward beyond the anther; never self-pollinating S. longifolia
5 Leaves variously spotted or not, margins undulate; labellum side lobes variable, acute to truncate, margins entire to shallowly incised or bifurcating; labellum base flat, spurless; life span of individual flowers variable (± two weeks) S. fimbriata var. fimbriata
- Leaves never spotted, margins entire; labellum side lobes without additional fimbriation; minute vestigial spur at base of labellum; individual flowers short-lived (± two days) S. fimbriata var. modesta

Species without key Stenoglottis fimbriata Lindley
References:
POWO (2022). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org/ Retrieved 20 November 2022."

















Read more cultivation of Stenoglottis fimbriata Lindl.
Culture:
Light:
1000-1800 fc. Light should be shaded, filtered or diffused, and plants should not be exposed to direct midday sun. Strong air movement should be provided at all times. Growers in South Africa remark that Stenoglottis species grow in the same areas as Streptocarpus (Cape Primrose), so if you can grow Streptocarpus successfully you should succeed with Stenoglottis.
Temperatures:
Summer days average 74-76F (23-24C), and nights average 62-64F (17-18C), with a diurnal range of 12F (7C). Because of the range in habitat elevation, plants should adapt to conditions considerable cooler than indicated.
Humidity:
70-75% most of the year, dropping to near 65% for 2-3 months in winter.
Water:
Rainfall is light to moderate throughout the year, with a somewhat drier period in winter. Cultivated plants should be watered often while actively growing, but drainage should be excellent and conditions around the roots should never become stale or soggy. Growers in South Africa report that they water their plants twice a week in summer.
Fertilizer:
1/4-1/2 recommended strength, applied weekly when plants are actively growing. Many growers prefer to use a balanced fertilizer throughout the year; but others use a high-nitrogen fertilizer from spring to midsummer, then switch to one high in phosphates in late summer and autumn.
Rest period:
Winter days average 67-68F (19-20C), and nights average 47-50F (8-10C), with a diurnal range of 17-20F (9-11C). Plants should adapt to temperatures much cooler than indicated, and plants that grow at higher elevations in the habitat undoubtedly experience brief periods of below freezing temperatures. Cultivated plants probably are healthier if not exposed to such extremes, but if they are subjected to cold temperatures, they are more likely to survive without damage if they are dry at the time. Rainfall in the habitat is lower in winter, but additional moisture from heavy dew is frequently available. Water should be reduced for cultivated plants in winter, but they should not be allowed to dry out completely. Enough water should be provided to keep the dormant crown and roots from shriveling. Growers in South Africa report that they reduce watering in winter to about once a week for plants grown with minimum temperatures about 50F (10C), It should be noted that the cooler the plants are kept, the less water is needed. Fertilizer should be eliminated until new growth starts and heavier watering is resumed in spring.
Growing media:
Growers in South Africa report that for success with these plants, the crown should be placed just beneath, or at the same level as the medium in a shallow dish or pot in a very well-drained and aerated medium. Hawkes (1965) recommended: "These plants are best grown in rather shallow, perfectly-drained pots or pans, filled with a porous compost of shredded osmunda, fibrous loam, gritty sand, and chopped sphagnum moss."
References:
This information is quoted from a Charles and Margaret Baker culture sheet, with permission from Troy Meyers This email address is being protected from spambots. You need JavaScript enabled to view it.. The entire culture sheet can be obtained by subscription from Orchid Species Culture, http://orchidculture.com











Stenoglottis macloughlinii (L.Bolus) G.McDonald ex J.M.H.Shaw, Orchid Rev. 111: 79 (2003).
Homotypic Names:
Cynorkis macloughlinii L.Bolus, Ann. Bolus Herb. 4: 139 (1928).
Description:
Lithophytic or terrestrial. Leaves 5-15, broadly lanceolate to oblanceolate, unspotted, concolourous green or purple below, margins flat, entire, up to 12.5 x 2.2 cm. Inflorescence up to 35 cm tall with 10-40 flowers; sheaths unspotted. Bracts lanceolate, acute to acuminate, unspotted, sheathing, always shorter than ovaries, 5.0-8.0 x 2.0-3.3 mm. Flowers white or pink, often spotted with a darker shade of pink or purple on the labellum only; not self-pollinating. Sepals ovate to narrowly ovate or elliptic, acute to obtuse, dorsal concave, laterals oblique, 3.3-5.3 x 1.6-2.9 mm, laterals slightly longer. Petals ovate, oblique, acute, 2.7-4.4 x 1.7-2.6 mm. Labellum spurred, broadly obovate to cuneate in outline, 5.9-9.5 x 5.2-8.3 mm; side lobes broad, truncate or rounded, margins entire; midlobe rounded or obtuse, subequal or slightly shorter than side lobes; spur tapering, straight or recurved, 2-3 mm x 0.3-0.4 mm at the apex, nectar-producing. Column up to 2.0 mm long; stigmatic arms parallel to labellum in mature flowers, curving outward; auricles large, clavate, up to 0.65 mm x 0.45 mm at the apex, projecting beyond the anther between the pollinia and stigmas. Ovary 7.5-12.5 mm long.
Habitat:
Most widely distributed in the Eastern Cape where it grows on or between Umsikaba sandstone, sometimes in full sun within sight of the sea. The species is then present northwards but tends to head inland towards Oribi Gorge.
Phenology:
Flowers from October to December.
Distribution:
SE. Cape Prov. to S. KwaZulu-Natal
References:
Orchid Rev. 111: 79 (2003).; Gavin McDonald, A Review of the Genus Stenoglottis Lindley; A taxonomic revision of Stenoglottis (Orchideae, Orchidoideae, Orchidaceae),Phytotaxa 456 (3): 219–243, 02 September 2020. By Dean P. Phillips & Benny Bytebier: POWO (2022). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org/ Retrieved 20 November 2022."
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Stenoglottis inandensis G.McDonald & D.G.A.Styles, Orchids S. Africa 39(2): 10 (2008).
Description:
Lithophytic or terrestrial. Leaves 6-10, lanceolate to linear, concolourous green or sparsely spotted with brown or maroon, margins flat, entire, up to 12.0 x 1.8 cm. Inflorescence up to 48 cm tall, with 15-30 flowers; sheaths unspotted. Bracts cordate, acute to acuminate, unspotted, sheathing or recurved, always shorter than the ovaries, 6.0-8.0 x 2.3-5.0 mm. Flowers white to pale pink, often spotted with a darker shade of pink or purple on all parts or labellum only; not self-pollinating. Sepals ovate, acute to obtuse, dorsal concave, laterals oblique, 5.0-7.5 x 2.7-5.5 mm, subequal. Petals ovate, oblique, acute, 4.2-6.5 x 3-4.5 mm. Labellum spurred; oblong to obovate in outline, 8.6-18 x 4.2-7.4 mm; side lobes shallowly incised to deeply divided; midlobe attenuate, longer than or subequal to side lobes; spur saccate, 1.4-3.2 mm x 0.8-1.4 mm at the apex, without nectar. Column up to 2.5 mm long; stigmatic arms suberect or parallel to labellum in mature flowers, curving outward; auricles clavate, up to 0.8 mm x 0.6 mm at the apex, projecting beyond the anther between the pollinia and stigmas. Ovary 12-22 mm long.
Habitat:
Stenoglottis inandensis is restricted to KwaZulu-Natal, South Africa, where it is known from several scattered colonies on Inanda Mountain and Table Mountain at elevations of 600-900 m. It occurs in forests or forest margins in deep or partial shade, most commonly as a lithophyte on boulders or on ledges and crevices along south-facing cliff faces, occasionally as a terrestrial in shallow soil.
Phenology:
It flowers January-April and is not self-pollinating.
Notes:
Stenoglottis inandensis is morphologically and phylogenetically distinct from the other spurred taxa. It is a rare and locally restricted species that was previously known (from herbarium records) only from the type locality at Inanda Mountain; the population at Table Mountain (~25 km northwest of Inanda Mountain and ~15 km east of Pietermaritzburg, KwaZulu-Natal) was previously regarded as S. woodii. However, a specimen from this locality (Phillips 22) included in the phylogenetic analysis of Phillips & Bytebier (2020) was sister to S. inandensis accessions from Inanda Mountain (Young 2510 and Young 2512). Collectively, the phylogenetic position of these populations is closer to the spurless S. fimbriata and S. longifolia than to the clade containing S. woodii and S. macloughlinii. The plants from the Table Mountain population also share several morphological characteristics (see ‘diagnostic characters’) with the Inanda Mountain plants that collectively distinguish them from the other spurred species. Consequently, the circumscription of S. inandensis has been expanded here to encompass this population.
Distribution:
KwaZulu-Natal
References:
Gavin McDonald, A Review of the Genus Stenoglottis Lindley; A taxonomic revision of Stenoglottis (Orchideae, Orchidoideae, Orchidaceae),Phytotaxa 456 (3): 219–243, 02 September 2020. By Dean P. Phillips & Benny Bytebier: POWO (2022). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org/ Retrieved 20 November 2022."
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Stenoglottis fimbriata var. modesta (Truter & Joliffe) D.P.Phillips & Bytebier, Phytotaxa 456: 228 (2020).
Homotypic Names:

Stenoglottis modesta Truter & Joliffe, Orchids S. Africa 42: 12 (2011).
Description:
Plant lithophytic herb, 120-330 mm high, with several cylindrical tubers, up to 6mm in diameter. Leaves 4-8, lanceolate-elliptic to spathulate, unmarked, glossy fairly thick, succulent substance; glabrous, 5-115 mm long, 18-22 mm wide, apex acute, margins entire and flat. Inflorescence a markedly secund raceme, up to 330 mm tall, with 5-25 flowers. Sheaths and bracts, unspotted, lanceolate, acuminate, gradually decreasing in size along the peduncle, shorter than the ovaries. Flowers white with pale pink overlay and lilac spots on all parts in southern population, to deep rosy crimson in three northern populations, with only a broken double line of darker pink spots down the centre of the labellum, semiclosed and self-fertilizing. Sepals folded forward, obtuse or rounded, 3-5 mm long, entire, the lateral ones somewhat oblique. Petals folded forwards so that they obscure the column, ovate, c.3mm long, slightly fimbriate around the apical margin to 'markedly fimbriate along entire margin. Labellum spreading, narrowly oblong in outline, 5-7 mm long, 3mm wide, always only 3-lobed, equal in length, two side-lobes subequal, 3-lobed for approximately half its length, lobe dimensions identical, never additional fimbriation on side-lobes; spur very small, but visible, sub-saccate, approximately 0.5 mm long. Column very small, short, less than 1 mm long, obtuse, Pollinia enclosed in sacs on the face of the column, Caudicles short, viscidia round. Staminodes small fistshaped, with tuberculate apex, adnate to the side of the column. Stigmas longer than the anther sacs, elongated, falcate, curving forwards and upwards, adhering to the anther sacs (thus effectively ensuring self-fertilization). Ovary/capsule up to 10 mm long.
Etymology:
Latin for moderate, restrained, referring to the small, semiclosed, self-fertilizing flowers.
Habitat:
Stenoglottis fimbriata var. modesta is known from several disjunct localities in the Eastern Cape and KwaZulu-Natal, South Africa, at elevations of 600–1300 m. It occurs in forests or forest margins, in deep or partial shade, most commonly as a lithophyte on mossy boulders, or on ledges and crevices along south-facing cliff faces, occasionally as a terrestrial in shallow soil. At several localities it has been found to cooccur with the nominal variety, with which it overlaps in flowering period but maintains its distinct form.
Phenology:
Flowering from February–April and is consistently self-pollinating.
Notes:
Most diagnostic characters described by Truter & Jollife (2011) for S. modesta are consistent throughout its geographic range. However, phylogenetic analyses (Phillips & Bytebier 2020) has shown it to be indistinguishable from S. fimbriata (as circumscribed in this paper, including both subspecies and S. zambesiaca) with which, in spite of its reliable diagnosis, it clearly shares overall morphological similarity. It seems that S. modesta recently diverged from S. fimbriata, and in view of the fact that it is sympatric (often in mixed populations) with S. fimbriata, it is better treated as an infraspecific taxon of that species. It is therefore reduced in rank here to S. fimbriata var. modesta.
Distribution:
KwaZulu-Natal
References:
A new species of Stenoglottis (Orchidaceae) from the Eastern Cape and KwaZulu-Natal Provinces of South Africa by J.T. TRUTER & K.G. JOLIFFE J.T. Truter; A taxonomic revision of Stenoglottis (Orchideae, Orchidoideae, Orchidaceae),Phytotaxa 456 (3): 219–243, 02 September 2020. By Dean P. Phillips & Benny Bytebier: POWO (2022). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org/ Retrieved 20 November 2022."
Images:
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