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12 mm longis, saepe intertextis; flore, ut di-<br />

citur, rubro. — B o l i v i a: prope Eucalip-<br />

tos, alt. 4000 m.<br />

Lobivia neo-haageana Bckbg. (ante p. 243,<br />

ubi syn.). Gregaria, vertice subdepressa, gri-<br />

seo-viridis vel vivide glaucino-viridis, costis<br />

10—11, ad 4 mm latis 2 mm altis, in tubercula<br />

parva acuta dimidio divisis, areolis ca. 4 mm<br />

inter se remotis, ovalibus, ca. 1.5 mm longis,<br />

primum paulo brunneo-tomentosis; aculeis<br />

ca. 10—12, tenuiter setaceis, vitreo-albis basi<br />

rubescentibus, ad 3 mm longis; flore rotato,<br />

ad 4 cm longo et lato, fructu parvo, subglo-<br />

boso. — A r g e n t i n a: Salta.<br />

var. flavovirens Bckbg. var. nov. Lutescenti-viridis,<br />

aculeis sordide luteolo-albidis<br />

basi bruhneis, verticis brunnescentibus basi<br />

griseis.<br />

Lobivia orurensis Bckbg. sp. n. (ante p.<br />

243). Gregaria, multiceps, colonias applanatas<br />

parvas formans, obscure-olivacea, 1—2 cm<br />

diametro, costis ca. 9, dimidio superiore in<br />

tubercula parva divisis, ca. 3 mm latis 2 mm<br />

altis, areolis- 2 mm inter se remotis, sparse<br />

brunneo-tomentosis; aculeis ca, 10, 1—2 mm<br />

longis, pectinatim ordinatis, luteo-albis, flore<br />

rubro? — B o l i v i a: prope Oruro.<br />

Lobivia pectinata Bckbg. sp. n. (ante p.<br />

243). Inter L. n e o - h a a g e a n a m et L.<br />

p y g m a e a m media, colore glaucino-viride<br />

anteriori, corpusculis elongatis et acutis, acu-<br />

leis tenuibus divaricatis var. l o n g i s p i-<br />

n a e posterioris similis. — In regione limi-<br />

tanea B o l i v i a n o - A r g e n t i n a.<br />

Lobivia culindrica Bckbg. sp. n. (ante p.<br />

244). Simplex, ad 12 cm longa 6 cm crassa,<br />

opaco-gramineo-viridis, costis ca. 11, 1 cm<br />

altis ad 1.2 cm latis, oblique sulcatis circa<br />

areolas undulato-incrassatis; areolis ca. 11<br />

mm inter se remotis, immersis, primum gri-<br />

seo-tomentosis, rotundis; aculeis marginali-<br />

bus ca. 7, subulatis, divaricatis, roseo-viridi-<br />

bus basi obscuris vel nigris, ad 8 mm longis,<br />

centrali solitario, rigidiore, 1—3 cm longo;<br />

flore late infundibuliformi, aureo, 4—5.5 cm<br />

longo et paulo latiore; fructu viridi, apice<br />

acuminata, squamis luteolis longe acutis<br />

praedito et dense albido-griseo-lanoso. —<br />

A r g e n t i n a b o r e a l i s: Sierra Chica.<br />

Mediolobivia rubelliflora Bckbg. sp. n.<br />

(ante p. 247). Globosa, serius proliferans,<br />

laete viridis, costis 10—14, spir alibus, in tu-<br />

bercula divisis, ad 4 mm latis 2 mm altis;<br />

aculeis marginalibus ca. 10, radialibus, albi-<br />

dis, setaceis, tenuibus, ca. 1—2 mm longis,<br />

centrali solitario paulo rigidiore, vix longi-<br />

ore; flore infundibuliformi, rubro-aurantiaco.<br />

— A r g e n t i n a: Salta.<br />

Mediolobivia rubriflora Bckbg. sp. n. (ante<br />

p. 247). Globosa, saturate viridis, tuberculis<br />

rotundatis applanatis, aculeis setaceis, brun-<br />

nescentibus, quam speciei praecedentis longi-<br />

oribus; flore flammeo. — A r g e n t i n a:<br />

Salta.<br />

Frailea aurea Bckbg. sp. n. (ante p. 247).<br />

Globosa, ad 2.3 cm diametro, apice depressa,<br />

tuberculis perparvis, subrotundis, areolis glo-<br />

bosis, brunneo-tomentosis; aculeolis 14, au-<br />

reis, pectinatim versus latera et basin incum-<br />

bentibus; flore luteo, fructu sulphureo, pube-<br />

scente. — U r u g u a y: prope Montevideo.<br />

415<br />

Frailea castanea Bckbg. sp. n. (ante p.<br />

248). Applanato-globosa, vix ultra 1.5 cm dia-<br />

metro, fere subterranea, apice profunde de-<br />

pressa, costis 15, in tubercula n o n divisis,<br />

vix 1 mm altis, rectissimis, obscure glauco-<br />

viridibus, sulcis acutis laetioribus; areolis<br />

perparvis, oblongo-rotundis, griseo-tomento-<br />

sis; aculeis primum rubellis postea nigris<br />

apice cornu colore, marginalibus ca. 8, maxi-<br />

mis 1 mm longis, centrali solitario, omnibus<br />

basiscopice incumbentibus; fructu globoso,<br />

ruf o, setis minimis obscuris et pilis minutis<br />

brunneo-griseis vestito. — U r u g u a y.<br />

Notocactus Mueller-Melchersii Fric 1928<br />

(nomen nudum). (ante p. 254). Species par-<br />

vior aculeis flavis, plus minusve adpressis,<br />

centrali plerumque solitario, divaricato, ad<br />

5 mm longo. — U r u g u a y: prope Monte-<br />

video.<br />

Pyrrhocactus dubius Bckbg. sp. n. (ante<br />

p. 263). Vivide glauco-viridis, aetate cylin-<br />

dricus, ad 20 cm altus, costis ca. 13, basi 1 cm<br />

latis sursum angustioribus, in tubercula divi-<br />

sis, areolis ovalibus, ad 7 mm longis, luteo-<br />

tomentosis; aculeis marginalibus ca. 10—12,<br />

divaricatis, ad 15 mm longis cornu colore et<br />

brunneo-maculatis vel ochroleucis mucrone<br />

obscuris, centralibus 2 (vel saepe unico) va-<br />

lidioribus, ad 25 mm longis, sursum subcur-<br />

vatis; flore ad 3 cm longo, virescenti-luteo,<br />

tubo brevi, ovario subrotundo, albo-tomen-<br />

toso et setoso, fructu viridi. — A r g e n t i-<br />

n i a b o r e a l i - o c c i d e n t a l i s.<br />

Parodia Faustiana Bckbg. sp. n. (ante p.<br />

266). Simplex, subglobosa, ad 6 cm lata et<br />

alta, pallide viridis, costis spiralibus in tu-<br />

bercula divisis; aculeis marginalibus ca. 20,<br />

ad 10 mm longis, vitreo-albis, lateraliter laxe<br />

intricatis, centralibus 4, tribus basi obscurio-<br />

ribus, crassioribus, infimo divaricato, curva-<br />

to, robusto, ad 4 cm longo, nitide brunneo<br />

apice laeto; flore luteo, ovario albo-lanoso. —<br />

A r g e n t i n a: Salta.<br />

var. tenuispina Bckbg. var. nov. aculeis<br />

marginalibus tenuioribus longioribus, centrali<br />

infimo setaceo, multo tenuiore, saepe laetiore.<br />

Parodia microthele Bckbg. sp. n. (ante p.<br />

266). Aculeis setaceis, plus minusve rectis,<br />

densis, aliis luteolo-albis saepe brunnescenti-<br />

bus aliis intermixtis albis; flore (semper?) lu-<br />

teo-aurantiaco. — Patria ignota, sub nomine<br />

falso E c h i n o c a c t u s m i c r o s p e r-<br />

m u s saepe cultivata.<br />

Parodia rubricentra Bckbg. sp. n. (ante p.<br />

267). Applanato-globosa, rarius elongato, co-<br />

stis ca. 16, spiralibus, dimidio basali solum<br />

in tubercula divisis, areolis 1 cm inter se re-<br />

motis; aculeis marginalibus numerosis, radia-<br />

libus, albis, nonnullis centralibus rigidioribus,<br />

elasticis, saepe subcurvatis, mucrone isabel-<br />

linis, praesertim iis verticis dense lanosi;<br />

flore laete cupreo-aurantiaco. — A r g e n-t<br />

i n a: Salta.<br />

Parodia tilcarensis Bckbg. sp. n. (ante p.<br />

268). (E c h i n o c a c t u s S t u e m e r i var.<br />

t i l c a r e n s i s Werd. & Bckbg. 1931). Glo-<br />

bosa, ad 15 cm alta et crassa, opaco-viridis,<br />

costis distinctis, dimidio superiori solum in<br />

tubercula parva 1 cm inter se remota divisis;<br />

areolis primum albo-lanosis (vertice densis-<br />

sime lanoso); aculeis marginalibus ca. 15, ra-<br />

dialiter divaricatis, tenuibus, centralibus 4,

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