E. Hassler: Novitates Argentinae. IV. 231 
Ab affini P. adunca M. B. differt caule subsimplici, foliis latioribus. 
labio galea longiore amplo (in P. adunca breviore multo minore), galea 
apice acutiore, calycis lobis integerrimis (non bidentatis). Corollae labio 
amplo galea longiore ab omnibus speciebus seriei „Palustres“ differt, 
Legit clar. V. J. Rubinskij (1909) in paludibus tour fosis ad ostium 
fluvii Bolschaja rjeká peninsulae Kamtshatka. 
LIII. Novitates Argentinae. IV. 
Auctore E. Hassler. 
(Originaldiagnosen.) 
11. Melochia argentina Hassler, nov. spec. 
Mougeotia: Suffrutex lignescens, e speciminibus exsiccatis extanti- 
bus ultra 70 cm altus, caules 3—4 mm crassi teretes, cortice atro-vio- 
lascente rimuloso obtecti, apicem versus unilateraliter minute fulvo- 
cinereopuberuli, rami graciles virgati teretes, basi ut caules lignescentes 
apicem versus cinerascenti-puberuli, ut caules stria ab indumento denu- 
data de nodo a nodo decurrenti, percursi, 15—25 cm longi, internodia 
20—30 em longa; stipulae e basi triangulari brevi subulato-acuminatae 
4—6 mm longae basi vix 0,5 mm latae, rufescentes, extus pilulis minutis 
Sparsis conspersae; folia sat longe petiolata, ad ?/, disposita; petioli 
subteretes, 10—20 mm longi supra leviter applanati et dense breviter 
fulvescenti-tomentosuli, subtus rotundati glabrescentes; lamina ovata 
acuta vel acute acuminata, basi attenuato-rotundata, 59/,,——9/,, mm 
membranacea, supra viridis subtus paullo pallidior, margine acute ser- 
rata, basi subtruncata integra, adulta supra, nervo mediano, pilulis 
paucis brevissimis insperso, excepta, glabra, subtus glaberrima, 5-vel 
sub 7-nervis, nervi supra impressi subtus valde prominentes, nervo me- 
diano lateralibus vulgo 5 utroque latere praedito; folia novella supra 
Sparse puberula, subtus in nervis pilo uno alterove sparse inspersa, 
Inflorescentiae axillares, e cymulis brevibus 3—6-floris umbellatim 
dispositis, formatae; pedunculi pedicellis + aequilongi, 3—5 mm longi 
ut pedicelli minute puberuli, prophylla stipulis similia, 2,5—3 mm longa; 
calyx campanulatus, sicco rufescens, 7,5 mm altus ad medium in lobos 
triangulari-ovatos subulato acuminatos divisus, 5-nervius, extus nervos 
et loborum margines minute puberulos exceptos, glaber, lobis intus 
dense breviter albido tomentosulis; petala obovata basi longe euneatim 
attenuata et in unguem 1 mm longum producta, 10 mm longa apice 
^ mm lata, flava, glabra; tubus stamineus glaber, 3,5 mm altus, ad !/; 
divisus, filamentis usque ad apicem alatim dilatatis, antherae late ob- 
longae 1,5 mm longae; ovarium ovatum 3 mm altum glabrescens, sty- 
lorum pars coalita 1 mm alta, densiuscule pilosa, partes liberae ] mm 
longae, clavatae tuberculatae. 
Capsula subpentagono-globosa glabrescens, apice apiculata, 8 mm 
alta 6 mm lata, usque fere ad medium dehiscens, carpidiorum apices 
