408 



Prodromus the only specific combinations with the generic 



Mendoncia were* M. albida and M. coccinea, both 



name 



published by Vellozo in Florae Fluminensis, p. 263 (1825). 

 Nees in DC. Prodromus, xi. p. 50 (1847), monographed the 

 species at that time known, and used the correct name Mendoncia. 

 Since then a number of isolated species have been described in 

 various publications, chiefly by Lindau. 



In Bentham and Hooker, Genera Plantarum, ii. p. 1072, 

 Mendoncia is placed with Thanhergia in the tribe Thunbergieae. 

 Lindau in Engler and Prantl, Pflanzenfamilien, iv. iii. B. p. 289, 

 creates the subfamily M endoncioidcae for the reception of the 

 genera Mendoncia, Monochlawys and Afromendoncia while 

 Thunhergia is placed in the subfamily Thunbcrgioideae together 

 with the genera Pseudocaly.r and Meyenia. The following is a 

 key to these allied genera : 



Fructus drupaceus, retinaculis nullis. 

 Ovarium prime biloculare. 



Flores 1-4 in foliorum axillis ; antherarum 



thecae longitudinaliter dehiscentes ... Mendoncia 



Flores in racemis ; antherarum thecae dehis- 



• • • • • • • • • 



9 • I ■ • « 



Monochlamys 

 Afromendonc 



centia porosa 

 Ovarium semper uniloculare 

 Fructus capsularis, retinaculis papillosis. 

 Pollinis granula sphaeroidea, sulcata. 



Antherarum thecae longitudinaliter dehiscentes Thunhergia. 

 Antherarum thecae dehiscentia porosa... ... Pseudocalyx. 



Pollinis granula rotata, marginibus dentatis ... Meyenia. 



Engelia (Karst. ex Nees in DC. Prod. xi. p. 721), is said to 



differ from Mendoncia in having the tube of the corolla provided 



with an anticous spur at about the middle, and the 5-partite limb 



split in front. This genus is reduced to Mendoncia in the 



Genera Plantarum and Lindau follows this in the Pflanzen- 



familien. It seems probable that a mistake was made in the 



original diagnosis but it has not been possible to identify the two 



specie* described as E. Tovarensis, Kl. & Karst., and E. rillosa, 

 Kl. & Karst. 



In the following revision of the genus a Latin description of 

 each species is given. This has been considered advisable because 

 many of the original descriptions are too imperfect for a species 

 to be identified from them alone. Fortunately the Kew Her- 

 barium posesses a large number of types or co-types and these 

 have been used as bases for most of the descriptions here given. 



The geography has been carefully revised by Mr. T. A. 

 Sprague, to whom the writer tenders his thanks. 



Mendoncia, Veil, in Vand. PL Lusit. et Bras. Specimen, p. 43, 

 tab. 3, fig. 22 (1788). 



Bracteolae 2, in spathae formam conspirantes, coroll>e tubum 

 ad medium vel totum includentes, saepe ad margines agglutinato- 

 connatae tunc demum plus minusve solutae, planiusmlae vel 

 carinatae. Calyx brevis, annularis vel cupularis, integer, saepis- 

 sime membranceus, glaber vel pubescens. Corolla tubulosa, tubo 



