Gramineae novae, a ch K. Skottsberg in Patagonia australi. 3Q5 



3. Atropis laxa Pilger, nov. spec. 



Culmi erecti ad 30 cm cum panicula alti inferne dense vaginati, 

 vaginis satis elongatis, innovationes paucae intravaginales et extra- 

 vaginales, turn erectae vel ± longe repentes tenues et in culmos foliatos 

 transeuntes, culmi parum plerumque exserti, vagina suprema elongata et 

 parum ventricosa; foliorum lamina erecta, angustissime linearis, arete 

 plicata, brevissime parum apice acutata, glabra, laevis, ad 10 cm longa, 

 vagina glabra laevis, ligula membranacea obtusa, 1 — 1,5 mm longa; 

 panicula depauperata, valde laxa, 7 — 8 cm longa, rhachis angulata, glabra, 

 rami inferiores ad nodos 2—3, superiores singuli, patentes vel paten- 

 tissimi, pauciflori, ad 4 cm circ. longi, ramuli pauci breves spiculis sin- 

 gulis terminati; spiculae 7 mm circ. longae, laxiflorae, 4- florae, rhachilla 

 supra florem supremum producta; glumae vacuae inaequales, inferior 2, 

 superior 3 mm longa, ellipticae, obtusae, margine parum eroso-ciliolatae, 

 nervi 3 tenues haud percurrentes, nervi laterales in inferiore vix con- 

 spicui; gluma florifera elliptica, concavata, dorso haud carinata, obtusa, 

 margine eroso-ciliolata, 3 mm longa, 5-nervia, raro et latere altero nervi 

 3 laterales, nervi haud percurrentes, tenues; palea elliptica, quam gluma 

 parum brevior, obtuse breviter bidentata, marginibus ad carinas late 

 arete inflexa, inter carinas concava, carinae superne scabro-ciliolatae; 

 flos 9, antherae perparvae, 0,75 mm longae; stili separati breves laxe 

 plumosi. 



Magalhaes-Strasse: Insel Dawson (no. 178. — II. 08). 



Aus der Verwandtschaft von A. parviflora Hack., aber durch grossere 

 Bliiten sowie die Art des Wachstums ausgezeichnet. 



4. Atropis Skottsbergii Pilger, nov. spec. 



Caespitosa, culmi innovationibus intravaginalibus et extravaginalibus 

 omnibus erectis instructi, erecti, 35—40 cm alti, inferne dense vaginati, 

 vagina suprema valde elongata, basin paniculae amplectens; foliorum ad 

 innovationes et ad basin culmorum lamina angustissima, filiformi-invo- 

 luta, obtusiuscula vel vix brevissime parum acutata, apice leviter sca- 

 berulo, ceterum glabra, laevis, 7—12 cm longa, in foliis culmeis su- 

 perioribus abbreviata et parum latior, vagina imprimis folium basalium 

 straminea, nitens, tenuis, demum fissa et obliterans, foliorum culmeorum 

 superiorum magis dura, striata, anguste culmum includens, ligula te- 

 nuiter hyalino-membranacea, satis elongata, in culmo ad 5 mm longa; 

 panicula basi inclusa angusta, ambitu circ. ovali-lanceolata, 10 ad 15— 

 !6 cm longa; rhachis stricta et imprimis rami et ramuli scabri; inter- 

 media in feriora 2-3 cm longa, rami complures verticillati, breves, ad 

 nodos inferiores raro 7—8 cm attingentes, ad superiores 2—3 cm tantum 

 } °ngi, erecti vel demum ± patuli, parum ramulosi, paucispiculati, spi- 

 culae, n i s i s i ngu ri ram ulum terminantes, brevissime pedicellatae; spiculae 

 Perparvae 3-florae, ± violaceo-variegatae; glumae vacuae inaequales, 1 

 « l 1,5 mm longae, ellipticae, obtusae vel truncatae vel etiam apice emar- 

 Sinatae, inferior 1-nervia, superior 3-nervia, nervi laterales breves; rha- 

 «hillae internodia fere medium glumam floriferam aequantia; gluma flori- 



Repertoriuin specierum novarom XII. (23. VII. 1913.) 20 



