NOVA ADDENDA AD FLORAM PATAGONICAM 57 



superanlibus (2-3 mm long.) ornatae, saepius 3-(rarius 4-5) 

 florae. Fructus late ovati v. pyramidati (4,5-o mm long. = 

 4-4,5 mm lat. has.), postice subtruncato-rotundati, non v. vix 

 subsinuali, antice cuneati glaberrimi, pedicellos superantes, 

 aique in angulis basin versus late membranaceo-alati. 



Species M. lycopodiopsi Speg. sal affinis, sed habitu et prae- 

 cipae fructuum forma sat distincta. 



157. MuLiNUM Valentini Speg., n. sp. 



Diag. Dioicum, ■perenne, caespitosum flavescens, foliis subimbri- 

 catis recurvo-patulis rigidis suhosperulis trisectis, lobis trian- 

 gulari-linearibus obtusis no7i mucronatis , ad epiphyllum eximie 

 sulcato-nervosis, petiolo brevi in pericladio vaginante margine 

 ciliato amplialo, umbellís pseudo-acrogenis 4-6 floris pedúnculo 

 petiolos pedicellosque vix aequanle suffultis, floribus parvulis 

 flavidis. 



Hab. In aridis saxosis prope Trelew, Chubut, i\ov. 1898 (doctor 

 J. Valentín). 



Obs. Caudices crassiusculi teretes (5-8 mm diam.) subherbacei 

 ápice densissime caespitoso-ramosi, ramis subfragilibus pulvi- 

 nuloshemisphaericos(6-'I6cm diam. := 3-6 cm crass.) compac- 

 tiusculos sed non duros efficientibus, sublaxe imbrica to-foliosis. 

 Folia infera arescentia cinérea, apicalia pallide virescentia v. 

 subflavescentia subrosulata, rigidula non papillosa sed tactu 

 asperula, recurvato-patula, limbis late triangularibus (2-3 mm 

 long. =4-5 mm lat.) trisectis, laciniis ovato-linearibus diva- 

 ricatis recurvis ápice obtusis, ad hypophyllum eximie profun- 

 deque sulcato-nervosis, dorso sublaevihus, in petiolo brevi 

 (1,5-2,0 mm long. = 1-1,25 mm lat.) attenuatis, basi in 

 pericladio late ovato vaginante, margine in juventute longe 

 albo-ciliolato ampliatis. Umbellaead apicem ramulorum pseu- 

 doacrogenae pedúnculo anguloso brevi (3-4 mm long.)crassi- 

 usculofultae, involucro 3-5-partito, laciniis linearibus angustis 

 acutis(2-3 mm long.), donatae,pedicellisinaequalibus, lacinias 

 involucri non v. vix superantibus, 4-6 unifloris. Flores in spe- 

 ciminibus, quae mihi adsunt, omnes masculi, glabri parvuli 

 flavidi, ovario nullo, sepalis dentiformibus minimis vix peri- 

 spicuis, petalis ovatis ápice obtusis repandulis ventre lenitpr 

 costulatis, staminibus flavis pusillis, disco carnosulo plario- 

 concaviusculo stylis stylopodiisque destituto. 



