ON SOUTH-AMERICAN APOOYNACEiE. 131 



margins subrevolute, opake above, covered with whitish small pimples, below clothed 

 with whitish tomentum, hirsute on the midrib, 2-2| in. long, 7i-9J lines broad, on 

 petioles 2-4 lines long : peduncle 4i-4f in. long ; sepals 9^11^ lines long, with numerous 

 inner scales ; corolla 4j in. long, softly puberulous ; tube slender, swollen in the mouth 

 for ^ of its length in a subcampanular form ; segments as long as the swollen portion of the 

 tube; ovaries clothed with woolly hairs; follicles 10 in. long, torulose, nearly smooth. 

 A species near M. longiflora, principally differing in its clothing. 



6. Macrosiphonia verticiilata, Miill. /. c. p. 140: Echites petrtsa, St.-Hil. Mem. Mus. xii. 321; 



A. DC. I. c. p. 472. In Brasilia : non vidi. 



A species growing in the extreme south-western portion of the province of E-io 

 Grande, as far as Montevideo, and in Uruguay. It is a suffruticose, erect plant, its 

 stem dichotomous at the apex, from 6 to 18 in. high, covered with dull red softly hirsute 

 hairs, its lower leaves ternate or quaternate, upper ones opposite, closely imbricated, linear 

 lanceolate, acute at the apex, obtusely cordate at the base, margias very revolute, sub- 

 rugous above, sparsely hirsute with reddish hairs, beneath cano-tomentous, with a pro- 

 minent midrib which is reddishly hirsute, 8-16 lines long, 1-5 lines broad, on petioles 

 |— I line long ; peduncle in the axils or dichotomy of the stem, solitary, 1-flowered, 2J-6 

 in. long ; pedicel short, with 3 or 4 bracts 3 lines long, cano-tomentose ; sepals acutely 

 lanceolate, tomentously pilose ; corolla 3^4J in. long, with an elongated slender tomen- 

 tous tube, gradually dilated and reddish at its summit, villous within at the contraction 

 of the tube, where the stamens are inserted; segments roundish, inequilateral, with 

 crispate margins; 2 slender follicles (6 in. long in the immature state), subarcuate, 

 torulous, acute, pubescent. 



7. Macrosiphonia pinifolia, nob. : Macrosiphonia verticiilata, var. pinifolia, MiiU. I. c. p. 141 : Echites 



pinifolia, St.-Hil. Mem. Mus. xii. 325 ; A. DC. /. c. p. 471. In prov. Goyaz, et in confinibus prov. 

 Minas et St. Paulo : non ■ 



A valid species, though regarded as a mere variety of the preceding by Miiller. It is 

 remarkable for its very small hispid leaves ; its stem is erect, hispid, scarcely 8 in. high ; 

 its leaves are very crowded, verticiUately quaternate, narrowly linear, with revolute 

 margins, hispid above, cano-tomentous beneath, 6-9J lines long, |-1 line broad ; the 

 peduncle varies from 4 to 6| in. in length ; tube of corolla extremely long, according to 

 its age ; segments crispate. The flower is odorous. 



8. Macrosiphonia prostrata, nob. : Echites multifolia, nob. olim in Trav. ii. p. 531 : Echites grandi- 



flora, Hook. var. minor, Journ. Bot. i. 286. In regione Argentina, (Pampas) prov. Cordova : v. v. 



et sicca in herb, meo (Punta de Agua) . 



A very pretty species, collected by me in 1825, when I made coloured drawings of it, 



with copious descriptions. It has a napiform root, throwing out several slender, simple, 



prostrate pilose stems, less than a foot long, sometimes shortly branched near the base, 



the axils 6-8 lines apart, bearing in each 3 verticillate linear-oblong membranaceous 



leaves, acute at the summit, bisinuately truncate at the base, with subrevolute margins, 



s2 



