Syagrus rupicola

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Syagrus (see-AHG-ruhs)
rupicola (roo-pih-KOH-lah)
Sr8767543322.JPG
Syagrus rupicola, Noblick & Lorenzi.
Scientific Classification
Genus: Syagrus (see-AHG-ruhs)
Species:
rupicola (roo-pih-KOH-lah)
Synonyms
None set.
Native Continent
America
America.gif
Morphology
Habit: Solitary
Leaf type: Pinnate
Culture
Survivability index
Common names
None.

Habitat and Distribution

Brazil,
Floribunda Palms, Hawaii. Photo by Geoff Stein.
West-Central.

Description

Syagrus rupicola Noblick & Lorenzi, sp. nov., Palma rupicola, caule breve subterraneo 10–20 cm longo, foliis coriaceis usque ad 1.2m longis viride-argentiis vel caerulescentibus, floribus femineis grandibus usque ad 2 cm longis. Typus: BRAZIL, Goiás, Teresina de Goiás, on the GO-118 highway towards Alto Paraíso de Goiás – km 215 (ca. 35 km from the town of Alto Paraíso), 13°52’28.8”S, 47°20’08.4”W, at an attitude of 1140 m, in the region of the Chapada dos Veadeiros. 7 Mar 2009, H. Lorenzi, R. Pimenta & R. Campos 6647 (holotypus HPL; isotypi R, SP, UB, NY, K). Fig. 14. A robust solitary palm, slightly over 1 m in height, with a very short or subterranean stem, 10–20 cm long. Leaves arched, 3–6 in the crown, ca. 1 m long; sheath 17–35 cm with fibrous margins, pseudopetiole 36–55 cm long; true petiole 16–30 cm long; rachis 0.7–1.2 m long, the underside of the sheath and rachis covered by a thick white tomentum; leaflets 45–66 along each side, linear, rigid-coriaceous with apex acuminate and asymmetric, silver or bluish-green and slightly lighter on the lower surface, distributed irregularly in clusters of 2–5 and inserted at different angles along the rachis, ramenta scales or tomentum often present near the base along the abaxial vein and especially at the insertion of the leaflets on the rachis, basal leaflets 6–22 × 0.1–0.4 cm, middle leaflets 24–34 × 2–3 cm, and apical leaflets 4.0–8.5 × 0.2–0.6 cm. Inflorescences erect and spicate to branched; peduncle 30–40 cm long; prophyll 16–21 × 4.5–6.0 cm; peduncular bract covered on the exterior with a grayish indument, 56–64 cm long, expanded part 20–29 × 4–7 cm; inflorescence axis ca. 24 cm long, rachis ca. 8 cm, with 1–6 primary branches ca. 9–15 cm long; staminate flowers, not yet seen; basal pistillate flowers pyramidal, glabrous, 18–20 × 13–16 mm, sepals imbricate 17–18 × 10–11 mm, petals glabrous, imbricate at the base but strongly valvate (upper half 8–9 mm) at the tips, 18–19 mm × 14–15 mm, pistil glabrous to finely lepidote, stigmas 3, glabrous, staminodial ring ca. 2.5 mm high, 6-dentate. Fruits nearly globose, pale yellowish to reddish brown, 3.5–3.9 × 2.5–3.4 cm, with a fibrous-fleshy (pulpy) mesocarp and visibly splitting at the apices when mature; epicarp covered with a fine reddish-brown lepidote indument. COMMON NAME : palmeria-da-pedra. ETYMOLOGY: The specific epithet means rock dweller and alludes to the preferred rocky habitat of this species. DISTRIBUTION AND ECOLOGY: Occurs in the northern part of the state of Goiás in the Chapada dos Veadeiros region, in high altitude (above 1000 m) campo rupestre or cerrado, generally in very rocky, well-drained soils. PHENOLOGY: Fruiting in December. NOTES: A medium-sized acaulescent palm; the rigid-coriaceous silvery-bluish leaves, fruit that splits at the apex with the mesocarp easily separating from the endocarp, and large pistillate flowers are some of this palm’s distinguishing characters. Acknowledgments: Sincere thanks to Fairchild Tropical Botanic Garden, where Larry is a research associate, and especially to their volunteer, Wes Jurgens, who furnished the drawings for the diagnostic plates. We would also like to thank Eduardo Gonçalves from Inhotim for helping us with the Latin diagnoses and to both Monica Moraes and Luiz Moreno for sending Larry material of the Bolivian S. petraea for study. Final thanks to Jill Menzel and Ricardo Campos for their support in helping Larry study many of these palms in the field. Part of the impetus for publishing some of these species was provided by the National Science Foundation Grant #0212779. (Noblick & Lorenzi)

Culture

Cold Hardiness Zone: 10a

Comments and Curiosities

A dwarf palm to about 1 m (3 ft.) tall from campo rupestre or cerrado vegetation in northern Goiás, Brazil. The few plumose leaves have stiff bluish or gray-green leaflets. (RPS.com)



External Links

References

Phonetic spelling of Latin names by edric.

Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).


Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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