Université de Neuchâtel

Two new species of Gentianella (Gentianaceae) from Peru

Pringle, James S ; Grant, Jason R

In: Brittonia, 2012, vol. 64, no. 3, p. 282-288

Two new species of Gentianella (Gentianaceae, Gentianeae, Swertiinae), G. grantii and G. wayqecha, are described from Departamento Cusco, Peru. These two species differ from other Peruvian species of Gentianella in a combination of stems 10–100 cm long; no rosette of basal leaves; cauline leaves 10– 75 mm long; flowers in thyrses; and corollas 14–26 mm long,...

Université de Neuchâtel

Andean Speciation and Vicariance in Neotropical Macrocarpaea (Gentianaceae-Helieae)

Struwe, Lena ; Haag, Scott ; Heiberg, Einar ; Grant, Jason R

In: Annals of the Missouri Botanical Garden, 2009, vol. 96, no. 3, p. 450-469

The genus Macrocarpaea (Griseb.) Gilg (Gentianaceae, Helieae) is among the largest woody genera of tropical gentians, with most of its species occurring in the wet mountainous forests of the Andes. Phylogenetic and dispersal-vicariance analyses (DIVA) of 57 of the 105 currently recognized species in the genus, using two data sets from nuclear DNA (ITS and 5S-NTS sequences) and...

Université de Neuchâtel

Wood anatomy of Gentianaceae, tribe Helieae, in relation to ecology, habit, systematics, and sample diameter

Carlquist, Sherwin ; Grant, Jason R

In: Brittonia, 2005, vol. 57, no. 3, p. 276-291

Twenty collections representing one species each of Symbolanthus and Tachia, and 17 species of Macrocarpaea were studied by means of light microscopy and scanning electron microscopy (SEM). Wood details show that the three genera form a coherent group; Tachia differs from the others in only a few minor characters. Because the species studied form a natural group, wood...

Université de Neuchâtel

Cytotaxonomic notes on the tribe Helieae (Gentianaceae)

Trunz, Vincent ; Zeltner, Louis ; Küpfer, Philippe ; Grant, Jason R

In: Harvard Papers in Botany, 2012, vol. 17, no. 1, p. 43-46

A survey of all known chromosome counts of gentian tribe Helieae are presented including new reports for ten species. Amongst the novelties are four genera of the Gentianaceae that are reported for the first time, Calolisianthus and Helia (both Helieae), and Schultesia and Zygostigma (both Chironieae). In the Helieae, our results reinforce the hypothesis of Weaver 1969...

Université de Neuchâtel

DE MACROCARPAEAE GRISEBACH (EX GENTIANACEIS) SPECIEBUS NOVIS XII: THREE NEW SPECIES FROM THE ANDES OF PERU

Grant, Jason R ; Vieu, Julien

In: Harvard Papers in Botany, 2014, vol. 19, no. 2, p. 241-246

Three new species from Peru, Macrocarpaea abiseo, M. felicitata, and M. huamantanga, are described and illustrated.

Université de Neuchâtel

DE MACROCARPAEAE GRISEBACH (EX GENTIANACEIS) SPECIEBUS NOVIS XI: FIVE NEW SPECIES FROM THE ANDES OF ECUADOR AND COLOMBIA

Grant, Jason R

In: Harvard Papers in Botany, 2014, vol. 19, no. 2, p. 227-239

Five new species are described from Andean regions of Colombia and Ecuador including M. catherineae, M. cortinae, M. illuminata, M. pacifica, and M. umbellata. Macrocarpaea stenophylla is reported as a range extension from Peru to Ecuador.

Université de Neuchâtel

DE MACROCARPAEAE GRISEBACH (EX GENTIANACEIS) SPECIEBUS NOVIS X: A SYNOPSIS OF THE GENUS IN MONTANE ATLANTIC FORESTS OF BRAZIL

Grant, Jason R ; Trunz, Vincent

In: Harvard Papers in Botany, 2011, vol. 16, no. 2, p. 399-420

Outside of the principal distribution and major diversification of Macrocarpaea in the Andes, smaller groups of species are found in the Greater Antilles of the Caribbean, Mesoamerica, the Guayana Highlands, and montane Atlantic forests of Brazil. Here, a complete revision of the genus in the latter region is presented recognizing eight species that correspond to the entirety of...

Université de Neuchâtel

DE MACROCARPAEAE GRISEBACH (EX GENTIANACEIS) SPECIEBUS NOVIS IX: A SYNOPSIS OF THE GENUS IN BOLIVIA

Grant, Jason R

In: Harvard Papers in Botany, 2011, vol. 16, no. 2, p. 389-397

A synopsis of the genus Macrocarpaea in Bolivia is presented. Four species are recognized including M. bangiana Gilg, M. cinchonifolia (Gilg) Weaver, M. cochabambensis Gilg-Ben., and M. fuentesii J.R. Grant, sp. nov. These are the four southernmost species of Macrocarpaea in the Andes.

Université de Neuchâtel

DE MACROCARPAEAE GRISEBACH (EX GENTIANACEIS) SPECIEBUS NOVIS VIII: FOUR NEW SPECIES FROM ECUADOR

Grant, Jason R

In: Harvard Papers in Botany, 2008, vol. 13, no. 2, p. 253-259

Two new species, Macrocarpaea claireae and M. quizhpei (Gentianaceae: Helieae), are described from the Huancabamba region of southern Ecuador. Macrocarpaea claireae occurs around Valladolid, adjacent to P. N. Podocarpus, and M. quizhpei occurs in the Nangaritza watershed. M. claireae is closely related to M. pringleana and M. sodiroana, yet differs...