118 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



sessiles decussatim dispositi, bracteati ; bracteae oppositae, 

 lineari-lanceolatae, ápice attenuato-acutatae v. ovatae, obtu- 

 siusculae (5-6'" long.— 1,5-2,5'" lat.), integerrimae, basi ample- 

 xicaules, ad axillam 1-florae, virides, foliis minus crassae, 

 parce ac tenuissime puberulae, calycem subaequantes v. brevio- 

 res; calyx cylindraceo-obconicus (7" long. — 2,5'" lat. ad os.), 

 valide 5-costato-plicatus, intense viridis, lineis 5 intercostalibus 

 exiguibus, pallidioribus, facile scissilibus percursus, extus 

 dense minute cano-pubescens, intus glaber v. vix imperspicue 

 adpresse laxeque pilosulus, ore breviter 5-dentatus, dentibus 

 triangularibus, herbaceis, saepe postico obliterato v. minore; 

 corollae tubus calyce duplo longior, obclavatus (12-14'" long. — 

 2'" crass. maj.), in parte calyce tecta tenuis, gracilis, in exerta 

 inflatulus, sub limbo abrupte anulatim coarctatus, extus dense 

 minuteque cano-pubescens, longitudinaliter incerte striolatus, 

 intus ad médium retrorsum densiuscule albo-pilosus; limbus 

 primo imbricativus dein expansus, 5-lobus (6-8'" diam.), lobis 

 ellipticis v. obovatis, anticis saepius majoribus, subíruncato- 

 rotundatis, integris v. erosis. Stamina 4, inclusa, ad tertium 

 superum, 2-anticis altius, 2-posticis inferius, adfixa, filamentis 

 brevissimis, glabris, connectivis filiformi-subinconspicuis, fu- 

 scidulis, exappendiculatis, antheris flavis ovatis, 2-locularibus, 

 loculis dorso appositis, parum inaequalibus, intimo saepius 

 majore ac altius filamento imposito, inferné rotundatis, sursum 

 acutiusculis, subapiculatisve, rimóse extrorsum dehiscentibus; 

 polline flavo; stylus íiliformis, tereti-obclavulatus, glaber, deor- 

 sum albescens, sursum virescens, stigmate párvulo bilobo, lobo 

 altero cónico, breviusculo, divaricato, altero hemisphaerico, pa- 

 pillulato coronatus, vix ultra dimidium tubum corollinum elon- 

 gatus; ovarium minutum, tereti-obovatulum, glabrum, purpu- 

 reo-virescens, minute 4-nervoso-sulcatum. 

 Corolla in sicco sordide flavescens v. roseo-flavescens. Floret No- 



vembre-Januario. 

 Species pulchella characteribus bene definitis eximie limitata; 



facile cum V. trífida (H. B.) K. (DC. Pr. v. 11, p. 530, et cum V. 



thymoides Cham. (DC. 1. c. p. 544) affinis; certe quoque cum V. 



thymifolia Lag. et cum V. tridacty lites Lag. (DC. 1. c. p. 554) rite 



cognata, nisi idéntica, descriptiones autem nimis mancae, nec 



recognoscendae. 



Ex Universitale Bonaérensi i Mari. /<983. 



