MACLOSKIE: REVISION OF FLORA PATAGONICA. 169 



Fam. 58. EUPHORBIACE^E. Macl., p. 551. 



P. 554 : 



EUPHORBIA SERPENS Kunth. 



According to Lorenz and Niederlein this species is found in the pampas, 

 and its occurrence in North Patagonia, Territory of Neuquen, is now 

 reported. Concerning E. serpens Kunth, var. indica Engelm., mentioned 

 by Macloskie, see Engler & Prantl, die Natiirl. Pflanzenfam., Ill, p. 105. 



P. 554, 10 lines from foot, add: 



E. DASYCLADA Dus. n. sp. (Plate I). 



Suffrutex humilis, ramosissimus, perennis ; rhizoma crassum, apice ramos 

 numerosos breves, crassos, cortice fusco obtectos, denudatos, apice ramu- 

 losos emittens ; ramuli breves, foliati ; folia parva, opposita, glauca, sym- 

 metrica, carnosa, spathulata, lamina fere orbiculari vel plerumque rhom- 

 boidea, obtusa, breviter petiolata, estipulata, trinervata, utrinque dense, 

 sed breviter pilosa ; cyathium parvum, anguste campanulatum, terminale, 

 solitarium, extus dense et breviter pilosum, lobis parvis, vix laciniatis, 

 glandulis 5, transverse ovalibus, haud appendiculatis ; flores ? perigonia 

 notati, phyllis parvis, angustis, fere linearibus, longe persistentibus ; cap- 

 sula dense et breviter pilosa ; semina griseo-viridia, obtuse trigona, laevis- 

 sima vel subrugosa. 



Suffrutex ad 5 cm. altus ; rhizoma apicem versus c. 7 mm. crassum ; 

 rami c. 3, ramuli c. 2 cm. longi ; petioli c. 5 mm. longi ; lamina 4-6 mm. 

 longa et lata; capsula c. 4 mm. alta et 5 mm. crassa; semina 2.5-3 mm - 

 longa et c. 1.5 mm. crassa. 



S. Patagonia, in the central part of Sta. Cruz Territory on the slope of 

 the Rio Sta Cruz valley ; found only once. 



Low, densely branched undershrub about 5 cm. high; rhizome crass, 

 upwards about 7 mm. thick, producing numerous denuded branches 

 ending with several leafy branchlets ; leaves small, opposite, glaucous, 

 symmetrical, fleshy, spathulate, 4-6 mm. long and broad and with petioles 

 of the same length, not stipulate, 3-nerved, densely and shortly hairy on 

 both sides ; cyathium small, thinly campanulate, terminal, solitary, densely 

 and shortly hairy externally with small, scarcely laciniate lobes and 5 trans- 

 versely oval, unappendiculate glands, perigon of the female flowers formed 

 by three sublinear leaflets ; capsule densely and shortly hairy. 



