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Project Name Data (Last Modified On 9/17/2013)
 

Flora Data (Last Modified On 9/17/2013)
Genus Raritebe Wernham
PlaceOfPublication J. Bot. 55: 336. 1917.
Note TYPE: R. palicoureoides Wernham.
Synonym Dukea Dwyer, Ann. Missouri Bot. Gard. 53: 262. 1966. TYPE: D. panamnensis Dwyer.
Description Small trees or shrubs. Leaves lanceolate, acuminate; stipules subulate to triangular, often persistent. Inflorescences terminal, corymbose paniculate;
Habit trees or shrubs.
Description bracts subulate, tending to persist, the bracteoles affixed to the base of the ped- icels. Flowers with the hypanthium short, the calycine cup reduced, the teeth 4- 5; corolla with the tube narrowly cylindrical, the lobes valvate, shorter than the tube, reflexed and contorted after anthesis; stamens 4-5, the anthers narrow, the filaments short, affixed to the base of the tube; ovary 2-celled (or rarely 1-celled), the placentas adnate peltately to the median septum, or when uniloculate each placenta arising from the base of the ovary and then splitting, the ovules numer- ous. Fruits coccoid and baccate, small; seeds numerous, rotund, foveolate.
Note Kirkbride (1979) placed all Panamanian elements of this genus in Raritebe palicoureoides ssp. dwyerianum Kirkbr., but a number of distinctive groups are recognizable as species.
Distribution occurs in Costa Rica, Panama, Colombia, Peru and Ecuador.
Reference Kirkbride, J. 1979. Raritebe, an overlooked genus of the Rubiaceae. Brittonia 31: 299-312.
Key a. Leaves 2 at a node. b. Ovary biloculate; inflorescences 15-30 cm long. c. Inflorescences spreading, 15-30 cm wide; leaves glabrate above. d. Leaves oblong lanceolate, scarcely falcate, the blades 2-3 times longer than wide ...... 4. R. panainensis dd. Leaves narrowly lanceolate, obviously falcate, the blades more than 3 times longer than wide ...... 6. R. victoriae cc. Inflorescences contracted, less than 6 cm wide; leaves appressed pilose above. e. Leaves to 13.5 cm wide; petioles to 4 cm long; flowers ca. 1.5 cm long; lower half of inflorescence axis unbranched ...... 1. R. bliumii ee. Leaves to 8 cm wide; petioles ca. I cm long; flowers ca. 1 cm long; lower half of inflorescence axis branched ......b2. R. darienensis bb. Ovary uniloculate; inflorescence less than 6.5 cm long ..... 3. R. eutryphylla aa. Leaves 3 at a node ...... 5. R. trifoliatilm
 
 
 
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