of Preroglossis laxa. As was already mentioned, P. /axa is a 
synonym of R. chilensis, a view already offered by Bentham & 
Hooker (1876: 909). 
4. Reyesia juniperoides (Werdem.) D’Arcy 
cs a a | 
D’Arcy in Ann. Missouri Bot. Gard. 65: 712. 1978. 
Salpiglossis juniperoides Werdermann in Notizbl. Bot. Gart. 
Mus. Berlin-Dahlem 10 (95): 474. 1928. ISOTYPES: Chile: 
Prov. Tarapaca: Dept. Tarapaca, Parca, Cordillera de Qui- 
pisca, ca. 2500 m alt., Werdermann 1054, Mar 1926. 
A perennial, erect species, intricately branched, attaining 0.8 m 
in height (fide Werdermann |. c.); the stems are also aphyllous 
with their terminal branches spiniform. 
ADDITIONAL MATERIAL. 
CHILE. Prov. Tarapaca: Dept. Tarapaca: Iquique, Caritaya (Alto de Camina), 
Barros 6549, 16 Jan 1941 (US).—Quebrada a 43 Km de Azapa, camino a 
Chapiquifia, Ricardi et Marticorena 25509, 24 Sept 1958 (CORD).— Maminha, 
A. Pfister 9467, 12 Jan 1950 (CORD). 
SUMMARY AND CONCLUSIONS 
In this paper a taxonomic revision of Salpiglossis R. et P. (2 
spp.), Leptoglossis Benth. (7 spp.), and Revesia (4 spp.) (three 
solanaceous genera of the tribe Sa/piglossideae) is presented. The 
long standing disagreement of the systematic position of the tribe 
is discussed and a key is offered to distinguish these three and 
related genera, as well as keys for the species within genera. 
Morphological and phytogeographic observations are included 
at both the generic and specific levels, supplemented by illustra- 
tions and maps. The more important results are as follows: 
1. Salpiglossis cannot be united with Bouchetia Dunal in DC 
(the authors will discuss this problem in more details in a forth- 
coming paper). The genus consists of two species: S. sinuata R. et 
P. (Chile and Argentina), and S. spinescens Clos (Chile). 
2. Leptoglossis is a disjunct genus of xerophytes with six 
Peruvian species [L. schwenckioides Benth., L. Ferrevrae Hunz. 
et Subils sp. nov., L. Darcvana Hunz. et Subils, L. /omana (Diels) 
29 
