Home Rubiaceae
Home
Name Search
Generic List
Rubiaceae Morpohlogy
Discussion and Comments
Pittoniotis Griseb. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in Index Nominum Genericorum (ING)Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Bonplandia 6(1): 8. 1858. (15 Jan 1858) (Bonplandia (Hannover)) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 3/9/2012)
Acceptance : Accepted
Project Data     (Last Modified On 3/9/2012)
Notes:

Pittoniotis is characterized by its woody habit, often as a rather large tree; its paired leaves with lineolate higher-order venation; its interpetiolar triangular stipules that often persist with the leaves and internally are covered with dense sericeous pubescence; its cymose inflorescences that are axillary or produced on short axillary stems; its small white corollas with the 5 lobes longer than the corolla tube and imbricated in bud; and its drupaceous fruits with a single 2-locular pyrene, with 1 seed in each locule. This genus comprised one species from the Caribbean basin until recently, when a second species from the Andes of Ecuador and Peru was described.

Pittoniotis is classified in the Guettardeae, and P. trichantha has sometimes been included in a broadened circumscription of Antirhea though recent authors have separated these (Taylor & Gereau 2010, and references cited there). The subrotate corollas of Pittoniotis, with the lobes longer than the tubular portion, are distinctive within the Neotropical species of Guettardeae. The fruits of Pittoniotis trichantha are red at maturity.

C.M. Taylor III 2012

Distribution: Southern and western Caribbean basin to Andes of Ecuador and Peru, from low elevations to cloud forests at 2200 m.
References:

 

Export To PDF Export To Word

Key to Species of Pittoniotis

1. Inflorescence axes branched to 2-3 orders; corolla subrotate, with the tube ca. 1 mm long and the lobes ca. 4 mm long; fruits 20-25 x 8-10 mm; cloud forests of Andes.....Pittoniotis rotata

1. Inflorescence axes branched to 3-5 orders; corollas subrotate to shortly tubular, with the tube 1.5-2 mm long and the lobes 2-3 mm long; fruits 5-6 x 2-3.5 mm; seasonal and subhumid vegetation of southern and western Caribbean basin......Pittoniotis trichantha

 
 
© 2015 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110