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(Last Modified On 7/24/2013)
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(Last Modified On 7/24/2013)
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Genus
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Psammisia Klotzsch
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PlaceOfPublication
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Linnaea 24: 42. 1851.
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Note
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LECTOTYPE: P. falcata (H.B.K.) K.
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Description
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Epiphytic or terrestrial shrubs. Leaves coriaceous, plinerved or pinnately veined, petiolate. Inflorescence axillary or terminal, subfasciculate or racemose with few to many flowers; pedicels deciduous bibracteolate, usually with a sharply delineated disarticulation groove just beneath the flower. Flower with the hypanthium short cylindric or campanulate, the limb erect or spreading; calyx lobes (2-4)5, ovate or triangular, apiculate or acute; corolla subcylindric, elongate urceolate or subglobose, 5-lobed, the lobes triangular and subacute; stamens(8)10(12), equal, often nearly as long as the corolla, the filaments dis- tinct or connate, the anthers inserted dorsally near the base, firm, stout with strongly granular thecae, the tubules distinct, 1/4 to about as long as the anther sacs, opening by elongate introrse clefts, the connectives either all laterally and distally 2-spurred or alternately spurred and spurless (rarely spurs obscure or lacking), the spurs either acute and conspicuous or rounded and not very apparent; style filiform and often exserted. Fruit a leathery berry.
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Habit
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shrubs
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Distribution
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This genus consists of approximately 55 species ranging from Costa Rica southward into Bolivia and eastward to French Guiana and Trinidad.
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Key
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a. Leaves pinnately veined. b. Leaves 24 cm long or less and 4-times as long as wide or less ...... 2. P. darienensis bb. Leaves 25 cm long or more and (5-)6-times as long as wide or more ...... 4. P. panamensis aa. Leaves plinerved. c. Corolla less than 10 mm long; stamens 4-5 mm long; filaments 1-2.4 mm long, distinct; tubules 1-1.5 mm long; disarticulation groove beneath hypanthium lacking ...... I P. dolichopoda cc. Corolla 20 mm long or longer; stamens 8 mm long or more; filaments 3 mm long or longer, connate or rarely distinct; tubules 2-4.5 mm long; disarticulation groove beneath hypanthium sharply delineated. d. Rachis of inflorescence 2 cm or longer; anthers including tubules 5.5 mm long or more; calyx lobes ovate or oblong ovate, apiculate, 1-3 mm long ...... 1. P. columbiensis dd. Rachis of inflorescence 1 cm long or less; anthers including tubules (5-)7 mm long or less; calyx lobes triangular, acute, ca. 1.5 mm long ...... 5. P. ramiflora
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