MACLOSKIE I UMBELLIFER/E. 633 



S. Patagon., by Lago Argentine; " pretty." 



5. MULINUM Pers. 



Cespitose undershrubs, much branching, the branches covered by leaf- 

 sheaths. Leaves 3-5-cleft, rigid, pungent, or 3~5-partite with obtuse 

 segments. Umbels sessile or stalked, simple, many-flowered, Involucral 

 bracts short, free or connate. Calyx-teeth conspicuous. Petals entire, 

 obtuse. Disk broad, depressed. Fruit dorsally compressed the commis- 

 sure narrow, biscutate. Mericarps dorsally plane or concave, marginally 

 wing-formed, convex on the commissural face. 



Species 17, Chili, Argent., Patagon. 



KEY TO THE SPECIES. 

 A. Leaves trifid. 



b. Leaf-segments linear, pungent. Umbels many-flowered, from upper axils ; flowers orange. 



leoninum. 

 b2. Leaf-segments (of cauline leaves) subulate. Umbels 5-7 -rayed ; flowers yellow. 



prolifcrinn. 



3. Leaf-segments subulate, spiny. Umbels subsessile, ending short branches, ulicinum. 

 64. Trifid-leaves cuneate, the segments plane-cuspidate. Umbel many-flowered on a short 



peduncle. cuneatum. 



5. Trifid leaves imbricating. 



c. Leaves mid-size. Umbels subacrogenous, subsessile, few-flowered. Caudex woody. 



patagonicum. 

 C2. Leaves small, from an ovate pericladium. Flower solitary, quasi-acrogenous. 



lycopodiopse. 

 A2. Leaves trisect, subimbricate, recurved ; segments triangular-linear, obtuse. Umbels with 4- 



6 small, yellow flowers. Dioecious. valcntini. 



A$. Leaves minute, 3-partite, imbricate ; the segments linear-lanceolate, bristle-tipped. Flowers 

 yellow-red. Caudex woody. microphyllum. 



A^. Leaves 5 -parti te ; the segments lanceolate, pungent. Umbel 10-12 -flowered ; flowers orange. 



spinosum. 



A$. Leaves 3-5-palmi-partite, segments oblanceolate, mucronate. Umbels 2 o-flowered ; flowers 

 white. morenonis. 



i. M. CUNEATUM Hook. & Arn. (Fragosa spinosa R. & P.) 

 Leaves cuneate, trifid; their segments plane, cuspidate; their sheaths 

 long, rigid, ciliate. Umbel briefly peduncled, many-flowered. 

 (Chili) ; S. Patagon., by Rio Sta. Cruz. 



2. M. LEONINUM Lor. 



Aromatic. Root woody, multicipital. Leaves trifid, the segments 

 linear, pungent ; the longer leaves 45 mm. long, the sheaths to 25 mm. 



