130 ON SOtTTH-AMEEICAN APOCTNACEJl, 



3. Macrosiphonia longiflora, Miill. I. c. p. 140, tab. 43 : Echites longiflora, Desf. Mem. Mus. v. 275, 



tab. 20; St.-Hil. Mem. Mus. xii. 324; Stadelm. Bot. Zeit. 1841, Beibl. 64; A. DC. I. c. p. 471; 

 Echites grandiflora, Hook. Arn. (in parte), Jo. Bot. i. 286 : Echites augusta, Veil. Flo. Mum. 114, 

 Icon. iii. tab. 48. In Brasilia, confinibus pfov. Eio de Janeiro, S. Paulo, et Minas : v. s. in herb, 

 meo, Minas Geraes (Claussen). 



This species has a thick rootstock, bearing several erect, simple, woolly, fistulous 

 stems, 12-15 in. high, sometimes with 2 opposite lateral branches 6 in. long, with 

 smaller leaves; axils ^-1 in. apart; opposite leaves subimbricate, lanceolate-oblong, 

 subcordate at the base, gradually acuminate, chartaceous, with undulated reflexed 

 margins, opake and almost glabrous above, sulcate along the midrib, nerves, and veins, 

 densely covered beneath with yellowish soft tomentum, 1-lf in. long, 5-9 lines broad^ 

 on woolly petioles ^ line long ; peduncle simple, nearly terminal, 6-12 in. long, pubes- 

 cent, or reddish and subglabrous, bearing 2 flowers at the apex 2 in. apart (or sometimes 

 only a single flower), on pedicels 3 lines long, furnished below with 3 linear bracts 3-6 

 lines long ; sepals very narrow, very acuminate, or setaceous at the reflected apex ; tube 

 of corolla slender, cano-tomentous, 5-6 in. long, swelling in a campanular form for ^ of 

 its length ; segments obliquely roundish, 1 j in . long and broad, with crispate margins, 

 border when expanded 2f in. in diameter ; the 2 erect, subtorulose, lanate follicles are 

 7^ in. long ; seeds compressed, linear oblong, 5 lines long, apical coma 9 lines long. 



4. Macrosiphonia Martii, Miill. I. c. p. 138 : Echites^ virescens, Stadelm. (non St.-Hil.), Bot. Zeit. 



1841, Beibl. 63. In Brasilia : v. s. in herb, meo, prov. Goyaz (Gardner 3312). 



The stem is erect, 2 feet high, including the flowers, all covered with white soft hairs, 

 the axils being 6-9 lines apart ; the leaves are opposite, nearly erect, and subimbricate, 

 oblong, obtusely acute, subcordate at the base, chartaceous, the margins crenately revo- 

 lute, above darkish green, opake, convex between the sulcate immersed nerves and 

 transverse veins, shortly and sparsely pilose, densely covered beneath with white woolly 

 tomentum, midrib reddish, nerves immersed, l|^-2^ in. long, 8-lOJ lines broad, on 

 petioles J-1 line long ; peduncle terminal, erect, sparsely clothed with reddish tomentum, 

 7 in. long, bearing above from 3 to 5 suberect flowers, on pedicels 3 lines long, 1 in. apart, 

 with 3 subsetaceous bracts 6 lines long ; sepals verjf narrow, subulate, subreflexed at the 

 apex, 7 lines long ; tube of corolla slender, 3 in. long, swelling for ^ its length in the mouth 

 in a cylindrical form, covered with whitish pubescence ; segments obovate, for the most 

 part glabrous, but tomentous at their base, the margins crispately crenate; follicles 

 6 in. long ; seeds SJ Hnes long, with an apical coma of the same length. 



The species differs from M. longifiora only in a terminal, stouter, longer, 5 -flowered 

 peduncle, the mouth of the shorter tube of the corolla being swollen in a narrower and 

 more tubular form. 



5. Macrosiphonia virescens, Miill. I. c. p. 139: Echites virescens, St.-Hil. Bull. Soc. Philom. 1824, 



p. 77 ; Mem. Mus. xii. 324; A. DC. /. c. p. 472 (in parte). In Brasilia ad Campos Geraes, prov. 

 S. Paulo : non vidi. 



Sterti erect, subsimple, densely covered with ferruginous curling tomentum, bare of 

 leaves upwards; leaves opposite, lanceolate, shortly acuminate, subcofdate at the base, 



