634 PATAGONIAN EXPEDITIONS I BOTANY. 



Umbels many-flowered, solitary on axillary peduncles from the upper 

 leaves. Involucre many-leaved ; its leaves linear-lanceolate, connate at 

 base, ciliate. Petals orange, broad elliptic, obtuse. 

 N. Patagon. 



3. MULINUM LYCOPODIOPSE Speg. 



Glabrous, compact, cespitose. Leaves erect, small, appressed, densely 

 imbricate, trifid on an ovate pericladium, non-ciliate, entire. Flowers 

 seemingly acrogenous, solitary. Peduncle short, 3-bracteolate. Fntit 

 mid-size, ovate. 



S. Patagon., high rocks by Rio Chico and Lago Argentine. 



Differs from Azorella lycopodioides by the sheaths and petiole being 

 non-serrate, and especially by the fruit. 



4. M. MICROPHYLLUM Pers. (Cav.). 



Stem fruticose, 7 cm. high, covered by leaf-sheaths. Cauline leaves 

 imbricate, minute, 3 partite, the lobes linear-lanceolate, ending in a bristle. 

 Petioles amplexicaul, basally ciliate. Flowers yellowish-red when dry. 



Patagon., by Puerto Deseado. 



5. M. MORENONIS (O. Ktze.) Speg. (Huanaca morenonis O. Ktze.) 

 Stems short, with involute, wooly leaf-sheaths, scarcely 5 cm. high. 

 Leaves glabrous, palmately 3~5-partite ; segments i cm. long, by i mm. 

 wide, crass oblanceolate with a setiform mucro. Petiole 2 cm. long, the 

 sheath i cm. broad. Peduncle solitary, subterminal, 8 cm. Inflorescence 

 subumbelliform, 2o-flowered, simple. Bracts lanciform, involucrate, re- 

 flexed. Petals white, ovate, acute. Calyx-teeth minute. Fruit? 



Patagon., at confluence of Rio Limay and Rio Neuquen ; along Carren- 

 leofu. "Like tall forms of M. microphyllum (Pers.)/' DC. 



6. M. PATAGONICUM Speg. 



Cespitose from a woody caudex, glabrous. Leaves mid-size, erect, im- 

 bricating, trifid ; the petioles slender broadening below in a pericladium. 

 Umbels subacrogenous, few-flowered, subsessile. Involucral leaves 3-5, 

 small. Fruits pyramidal-ovate, twice as long as the pedicels. 



N. Patagon., by Lago Nahuel-huapi. 



7- M. PROLIFERUM Pers. 



Root tortuose. Stem 7-10 cm. high. Cauline leaves trifid ; their 

 segments subulate. Petioles sheathing, glabrous. Umbels 5-7-flowered. 



