THE GENUS MANETTIA 13 



Other favourites in cultivation are ilT. bicolor Paxt. (J/, luteo- 

 ruhrn Benth.), and the allied M. inflata Sprague, just referred to, 

 the latter being the subject of an excellent coloured figiu'e in the 

 Botanical Magazine, t. 7776 (1001), wrongly named M. bicolor. 



Mr. W. Watson, writing in 1S99 in The Garden, Ivi. 6 (t. 1229) 

 say of 31. hicolor (the so-called " Manettia Vine ") that " it has been in 

 cultivation for about 50 years." M. inflata, a native of Uruguay 

 and Paraguay, has been grown in the Water-lily-house in Kew 

 Gardens for some considerable time ; it is finer than M. bicolor, and 

 is rarely out of fiower. Beside these, |a robust form of M. cordifolia, 

 discovered originally in Peru, the M. micans of Poeppig & End- 

 licher, has been known for a long time in European hot-houses ; it is 

 well illustrated in the Botanical Magazine, t. 5495 (1865). 



A remarkable cultivated species, of unknown native home, is the 

 lost M. miniata Ch. Lem. (Flor. des Serres, iv. t. 317 (1848)). 

 According to the figure this was evidently a striking species, with 

 scarlet fiovvers, of medium size (rather more than 1"5 cm. long), of 

 the fourth section {infra), § Ysginanthus, allied to M. hispida ; 

 bat all trace of it now seems to be lost. 



The above appear to be the only species that have been intro- 

 duced into cultivation. Previous accounts of the genus estimate the 

 total number of species at about 30, or 30 to 40. According to the 

 present paper the number of good species hitherto described is 47; 

 and 34 are described as new, bringing the total number to 81. 



All the species referred to above are easy to grow, in a compost of 

 equal parts of peat, loam, and sand. They are graceful plants, her- 

 b:iceous or delicately suffrutescent, being particularly useful to train 

 over trellises, rafters, or pillars. They are readily propagated by 

 cuttings, taken from young shoots, and set in a sandy soil, with the 

 necessary addition of bottom-heating. 



Key to the Species. 



A. Flowers usually large, rarely less than 3 cm. in length, 

 generally much larger. Corolla clavate, widening 

 gradually from the base upwards, and more or less 

 narrowed at the mouth, glabrous externally (except in 

 two species) § Pyrkhanthos. 



Calyx-lobes very small, rarely so much as 4 mm. long, 

 often setaceous. 

 Leaves 1'5 cm. long at most, not acuminate. 

 Calyx-lobes oblong, with rounded apex ; leaves ellip- 

 tical 1. (InminfjensiK. 



Calyx-lobes setaceous ; leaves narrowly lanceolate ... 2. Tweedieana. 

 Leaves rarely less than 3 cm. long, usually 5-8 cm., 

 very acuminate. Calj'x-Iobes setaceous. 



Capsule globe )se-pyriform 3. gracilis. 



Capsule manifestly oblong 4. Burchellii. 



Calyx-lobes i-arely so small as 5 mm. long, never both 

 small and setaceous, always flat and appreciably wide. 

 Corolla glabrous exterimlly. 



Calyx-lobes elongate, grass-like, subsetaceoua 10. zimapanica. 



Calyx-lobes not elongate. 

 Calyx-lobes ample, ovate, foliaceous 8. stipnlosa. 



