304 PATAGONIAN EXPEDITIONS I BOTANY. 



i. ALLIUM Linn. 



Bulbous herbs, with garlic odor, linear, sheathing, usually basal leaves, 

 and simple, erect scape, bearing a bracted umbel of flowers ; some of the 

 flowers in some species becoming bulbils. Ovary with 1-6 seeds in each 

 cell ; style shortly 3-branched. 



Species 275 ; chiefly extratropical in the Northern Hemisphere. 



A. BONARIENSE Griseb. 



Bulb 8 mm. diameter. Scape 7-12 cm. Leaves nearly i mm. broad. 

 Umbels 3-5-flowered ; perianth 8 mm. long, yellow (externally purplish 

 when dry). Perianth-leaves distinct. Style twice as long as the ovary. 

 Cells of ovary 6-io-ovulate. 



(Uruguay) ; N. Patagon. 



2. BRODL^A Smith. (Including Triteleia Lindl). 



Corm more or less coated. Leaves all radical, large. Scape simple, 

 bearing a terminal umbel, or i -flowered. Perianth funnel- to bell-shaped, 

 its leaves subequal. Stamens on the tube, 6, or 3 of them barren ; fila- 

 ments short; anthers introrse. Style filiform, stigma 3-lobed. Capsule 

 oblong in the marcescent perianth. Seeds numerous, black, often com- 

 pressed. 



Species 30, chiefly from Calif, to Chili. (Fig. in Eng. & Prantl, ii, 5, p. 

 57.) Subgenus Triteleia has staminal circle of unequal height, filaments 

 filiform, all antheriferous. 



i. B. AMEGHINOI Speg. (=Tristagma ameghinoi Speg.). 



2. B. AUREA (Baker sub Milla\ 



Bulb globose, about 10 mm. diameter, tunicate. Leaves 6-8, fleshy, 

 synanthic, filiform, 8 cm. long. Scapes 1-3, erect, 5-10 cm. long. Valves 

 of spathe 2, lanceolate, basiconnate. Umbels 2-6-flowered ; pedicels 14 

 mm. long. Perianth 10-12 mm. long, saffron-colored, its segments ob- 

 long, spatulate, spreading, 3~4-times as long as the short tube. Stamens 

 slightly 2-seriate from the throat. Ovary sessile, cells 5-6-ovuled. Style 

 3 mm. long. 



(Argentina) ; Patagonia. 



