Monographia Loasacearnm. 16J 



liter sinuato-dentatis usque -crenatis, superioribus sensim siibtriangularibus saepiusque 

 subtrilobis: flovibus luteis; petalis sub antbesi patentibus 5 — 7 mm loiig:is in parte '/4 

 inf. late imguiculatis; Capsula obconica; placentis 3 paiillo prominentibus late diebotomis, 

 pauciovulatis; seminibus 7 — 10. 



Loasa heteroplnjUa Hool: d Arn. in Hool;. hof. Mise. III. (1833) 828; Walj). 

 Bep. II. 225; Gay Fl. Chil. IL -453. 



Loasa insons var. prostraia Poepp. Fnujiii. Synops. (1833) 24; Walp. Rep. 

 II. 226. 



Loasa Barneoudii Gay Chil II. (1846) 452; Wal}). Ann. II. 657. 



Loasa elongata Phil. Fl. Atuc. (1860) 19 n. 112 (tion Hool: et Arn.). 



Radix (verosimiliter biennis) fusiformis elongata parce fibrosa usque ad 25 cm 

 longa, cauli inferiori subaequicvassa. Caulis erectus simplex vel superne vel rarins a basi 

 ramosus, 20 — 40 cm longns, ihferne 2,5 — 5 cm crassus, teres, in sicco longitudinaliter striatulus, 

 albescens vel flavido-albescens, pilis modice longis verticillatim glocliidiatis densissime obtectus 

 setis dense intermixtis, superne cymo.^e evolutus, gemmis serialibus nullis. Folia opposita 

 et decussata, infima saepius petiolo usque ad 5 cm longo lamina subduplo longiore praedita, 

 petiolo in superioribus sensim minore ideoque foliis supremis semper sessilibus, ambitu orbi- 

 cularia vel ovato-orbicularia usque ovata, usque ad 4,5 cm longa, item lata, apice acutiuscula 

 vel acuta, basi eordata vel subcordata regulariter grosse ac profunde dentata vel valde in- 

 aequaliter sinuato-dentata usque -crenata, superiora sensim subtriangularia saepiusque subtriloba, 

 lobis acutis vel acutiusculis usque obtusiusculis, supra pilis longis antrorsum spinuligeris 

 dense obtecta setis rarius intermixtis, subtus aliis verticillatim glochidiatis densissime vestita, 

 setis nullis vel rarissimis. Fl eres in apice caulis ramorumque in cymas semel ter furcatas 

 dispositi, cymae ramis unifloris vel in monocbasia 2-tiora evolutis, verticales vel penduli — 

 id est terram spectantes — lutei (ex Gay); prophylla euphylloidea sed sensim minima sessilia; 

 pedunculi 1 — 1,5 cm longi, fructigeri usque ad .3 cm elongati, erecti vel undulato-erectiusculi. 

 Calycis tubus obconicus, inferne sensim attenuatus, 4 — 5 mm longus, superne 3 — 4 mm 

 crassus, pilis minimis verticillatim glocliidiatis densissime vestitus, setis dense intermixtis; lobi 

 in aestivatione aperti, sub antbesi patenti-recurvati, lanceolati vel lanceolato- lineares apice 

 acnti, 4 — 5 mm longi, basi 2 — 2,5 mm lati, utrinqne pube tubi sed parciore. Petala in 

 aestivatione valvata, sub anthesi patentia, 5 — 7 mm longa, superne er. 1,5 mm profunda, 

 marginibus 2—2,5 mm distantibus, in parte ','4 inferiore late unguiculata, superne paullo cymbi- 

 formia, extrinsecus pube caulis, intus glabra. Squamae a latere visae semihmatae, a dorso 

 ovatae vel late ovatae, er. 2,5 mm longae, 2 mm latae, valde saccato-convexae, nervis 3 in 

 '/j squamae alt. in lobulos dorsales abeuntibus, dein usque ad apicem ascendeutibus ac apice ipso 

 marginem versus dense ramulosis, lobulis dorsalibus laminuliformibus membranaceis planis 

 verticaliter positis ovalibus manifeste stipitatis 0,8 — 1 mm longis, margine superiore in medio 

 filiim squamae 3/4 paullo superans filiforme sed apicem versus sensim magis incrassatum ob- 

 solete papillosum gerentibus, ab insertione lobulorum usque ad apicem obsoletissime carinatae, 

 carinis saepius vix conspicuis, apice manifeste incrassato profunde quadrato-exciso margine 

 superiore valde revoluto curvato-conjunctis, lobis 2 lateralibus apicalibus (ineisura efformafis) 

 tenuibns apice rotundatis latis aliformibus undulato-incurvatis basin versus sensim angustioribus 

 basique ipsa omnino evanescentibns, extrinsecus densissime papillosae intus glabrae. Stami- 

 nodia 2 interiora squamas vix vel non superantia, basi paullo vel vix incrassata, apicem versus 



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