Blake — A Revision of the Genus Viguiera 171 
about 16, oval, 6 mm. long, 3 mm. wide; disk corollas sparsely 
hispidulous below, 4.7 mm. long (tube 1.2 mm.). Pales minutely 
tridenticulate, puberulous at extreme apex, 9 mm. long. Achenes 
appressed-sericeous, 3.5 mm. long. Awns slender, one about 
equalling the squamellae, the other 2.5 mm. long; squamellae 
about 6, lacerate above, those on each side united nearly to apex, 
2 mm. long. — Gardn. ! Lond. Journ. Bot. vii. 403 (1848); Baker 
in Mart. Fl. Bras. vi. pt. 3. 227. t. 67. f. 1 (1884). V. scabra Pohl 
ex Baker, |. ¢., as syn. — Divisible on involucral characters into 
two varieties. 
Var. genuina: phyllariis apice obtusis vel rotundatis vel intimis 
subacutis.— V. robusta Gardn.1l.¢. V.scabra Pohl, 1.¢.—BRAZIL: 
Goyaz: dry upland campos near San Domingos, May 1840, 
Gardner 4233 (TYPE couy.: B. M., K.); Minas Gerags: 1839, 
Claussen (G.), 1840, Claussen 276 (B. M., K.), 27 April 1865, 
Regnell I. 190 (K.); Sierra de San José del Rei, 21 April 1888, 
Glaziow 17084 (K., U. S.); Rio pr Janerro: near Rio de Janeiro, 
Glaziou 9490 (K.), 11027 (G., K.). Brazil without definite locality: 
Pohl 585 (K.), Martius 826 (K.), Sello (G.). —T. 2. Fie. 29. — 
Through Glaziou 12880, from Rio de Janeiro (K.), this passes into 
Var. oxylepis: phyllariis involucri 5-seriati 9-10.5 mm. alti 
angustius oblongis exterioribus acutis intimis subacuminatis cal- 
loso-mucronatis; ceterum ut apud var. genuinam. — BRAZIL: 
without locality, Riedel (type cou.: G., K.). 
V. macrocalyx, sp. nov. Herbacea erecta supra ramosa, 
caule valido folioso, foliis alternis ovatis vel ovali-ovatis sursum 
crenato-serratis supra viridibus tuberculato-hispidulis sublucidis 
subtus subcanescentibus subdense hispidulis venoso-reticulatis, 
capitulis paucis, disco 16-18 mm. alto, involucri 4-seriati gradati 
12-14 mm. alti phyllariis ovalibus vel ovali-oblongis apice rotun- 
datis dense tuberculato-strigillosis induratis apice brevissime 
subherbaceis appressis, corollis disci 7 mm. longis. 
Erect, herbaceous, branched above, the stem stout, striatulate, 
leafy, 1 m. high or more, densely tuberculate-strigillose and -stri- 
gose. Leaves alternate, ovate to oval-ovate, acute to subobtuse, 
Tounded at base or truncate-rounded, scarcely amplexicaul, 
crenate-serrate above (teeth 7-13 pairs, obtuse, appressed), above 
green, sublucid, tuberculate-hispidulous, beneath subcanescent, 
subdensely hispidulous and along the veins hispid-strigose, gland- 
