Psammisia: Difference between revisions

Psammisia
	Psammisia sp., Ecuador
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Ericales
Family:	Ericaceae
Subfamily:	Vaccinioideae
Tribe:	Vaccinieae
Genus:	Psammisia; Klotzsch

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Latest revision as of 06:43, 9 May 2024

Psammisia is a genus of flowering plants in the family Ericaceae. It contains the fruiting bushes commonly called joyapas and is distributed throughout the Neotropics.

Description[edit]

Psammisia are shrubs can be found on land or as epiphytes. Their leaves are usually arranged alternately, occasionally in pairs, with a leathery texture and smooth edges. The flowers are typically grouped in small clusters or elongated spikes, with each flower having a small bract and two basal bracteoles. The flowers have five petals, no scent, and a valve-like arrangement as they open. The calyx is fused, forming a tube that is round or occasionally winged, with the upper part standing upright or spreading out. The corolla is also fused, forming a tube that can be cylindrical, elongated, urn-shaped, or nearly spherical, with a fleshy texture. Psammisia flowers have 8 to 12 stamens, which are equal in length to about one-third of the corolla or almost as long as the corolla itself. The stamen filaments may be separate or joined together, and they often have two conspicuous spurs at the tips. The anthers are rigid and open through elongated slits facing inward. The ovary is positioned below the flower. Psammisia plants produce fruit in the form of berries, which have a leathery texture.

Species[edit]

Species include:^[1]

Image	Name	Distribution
	Psammisia aberrans	Colombia, Ecuador, and Peru
	Psammisia amazonica	Ecuador (Morona-Santiago Prov.) and Peru
	Psammisia aurantiaca	Ecuador (Pichincha)
	Psammisia caloneura	southern Colombia and northern Ecuador
	Psammisia chionantha	Ecuador
	Psammisia columbiensis	Colombia and Ecuador
	Psammisia corallina	Ecuador
	Psammisia cuyujensis	Ecuador (Napo Prov.)
	Psammisia darienensis	Panama
	Psammisia debilis	Southern Colombia to central Ecuador.
	Psammisia dolichopoda	Panama, Colombia, and Ecuador
	Psammisia ecuadorensis	Ecuador
	Psammisia ferruginea	W Panama, Colombia, and Ecuador
	Psammisia fissilis	Ecuador and Peru
	Psammisia flaviflora	Ecuador (Pichincha Prov.)
	Psammisia grabneriana	Colombia and Ecuador
	Psammisia guianensis	Brazil and the Guianas, to Venezuela, Colombia, Ecuador, Peru, and Bolivia
	Psammisia idalima	Southern Colombia (Putumayo) and Ecuador
	Psammisia incana	Ecuador (Napo Prov.)
	Psammisia montana	West-central Colombia to northern Ecuador (Carchi)
	Psammisia oreogenes	Ecuador
	Psammisia orientalis	Ecuador (Morona-Santiago)
	Psammisia pauciflora	Colombia, Ecuador, Peru, and Bolivia
	Psammisia ramiflora	Costa Rica and Panama
	Psammisia roseiflora	Oriente of Ecuador
	Psammisia sclerantha	Ecuador
	Psammisia sodiroi	Colombia and Ecuador
	Psammisia ulbrichiana	Colombia, Ecuador, and Peru
	Psammisia williamsii	Costa Rica

References[edit]

^ List: Psammisia of Ecuador

External links[edit]

Media related to Psammisia at Wikimedia Commons
Data related to Psammisia at Wikispecies
NYBG key

This Ericaceae article is a stub. You can help Wikipedia by expanding it.

[1] List: Psammisia of Ecuador

[1]

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 '''''Psammisia''''' is a genus of [[flowering plant]]s in the family [[Ericaceae]].  It contains the fruiting bushes commonly called ''joyapas'' and is distributed throughout the [[Neotropics]].
 ==Description==
+''Psammisia'' are shrubs can be found on land or as epiphytes. Their leaves are usually arranged alternately, occasionally in pairs, with a leathery texture and smooth edges. The flowers are typically grouped in small clusters or elongated spikes, with each flower having a small bract and two basal bracteoles. The flowers have five petals, no scent, and a valve-like arrangement as they open. The calyx is fused, forming a tube that is round or occasionally winged, with the upper part standing upright or spreading out. The corolla is also fused, forming a tube that can be cylindrical, elongated, urn-shaped, or nearly spherical, with a fleshy texture. Psammisia flowers have 8 to 12 stamens, which are equal in length to about one-third of the corolla or almost as long as the corolla itself. The stamen filaments may be separate or joined together, and they often have two conspicuous spurs at the tips. The anthers are rigid and open through elongated slits facing inward. The ovary is positioned below the flower. Psammisia plants produce fruit in the form of berries, which have a leathery texture.
-They are terrestrial or epiphytic shrubs. Leaves usually alternate, rarely subopposite to opposite, petiolate or rarely subsessile, coriaceous, plinerveal or pinnatinerveal, the margins entire. Axillary or terminal inflorescences, subfasciculate or racemose with few to many flowers; flower bract 1, small; pedicels articulated with calyx; bracteoles 2, usually basal. Flowers 5-mere, scentless, aestivation valved; synsepalous calyx, the tube terete, rarely winged, the limb erect or patent; corolla sympetalous, subcylindrical, elongated, urceolate or subglobose, fleshy; stamens (8-)10(-12), equal, 1/3 of the corolla to almost as long as it; filaments distinct or connate, the same, the connectives all lateral and distally 2-spurred or without spurs (spurs rarely inconspicuous or absent), the spurs acute and conspicuous or rounded and not very apparent; anthers equal, rigid, disintegration tissue absent, thecae granular, tubules distinct, 1/4 length of thecae to about as long as them, dehiscent by elongated introrse slits; threadless pollen of viscina; inferior ovary. Fruits in berries, coriaceous.