SAXIFRAGAGEJE. 



339 



roiclal embiyo, sometimes surrounded by a membranous albumen. 

 Parnassia comprises about a dozen species of glabrous perennial 

 herbs, 1 inhabiting the temperate and cold regions of the Northern 

 Hemisphere, and the mountains of India, preferring marshes and 

 damp pastures. The radical leaves are alternate, with a petiole 

 dilated at the base, and a simple blade. Axillary to these arise one- 

 flowered peduncles, bearing halfway up one or more leaves or 

 bracts. 



V. FRANCOA SERIES. 



Francoa? (figs. 3S8-391) has hermaphrodite regular flowers. On 

 the rim of the very slightly concave receptacle are inserted four 

 sepals, valvate or slightly imbricate, two lateral, two antero posterior. 

 There are as many alternating petals, imbricate or contorted in the bud. 



Francoa sonchifolia. 



Fig. 388. 

 Flower ('f). 



Fig. 38!). 



1) 



msram. 



Fig. 391. 

 Fruit dehiscing (|). 



Fig. 390. 

 Long, sect, of flower. 



The androceum consists of eight subperigynous stamens, four super- 

 posed to the sepals, and four smaller to the petals ; each consists 



1 Vent., Malm., t. 39.— Hook., Fl. Bo,:- 

 Amer., i. t. 27, 28; Bot. Misc., i. t. 23. — Zenk., 

 PI. hid., t. 5.— K., Fl. Berol., i. 99.— Gren. 

 & Godr., Fl. de Ft:, i. 193.— A rn., in Bot. 

 Mag. Comp., ii. 315. — Wight, III., t. 21 ; Icon., 

 t. 91-5. — Hook. f. & Titoms., in Journ. Linn. 

 Soc.,\\. 79.— Walp., Sep., i. 230; ii. 768; Ann., 

 i. 72, 958. 



2 Cay., in Ann. Scienc. Nat., iv. 237 ; Icon., 

 vi. 77, t. 596.— DC, Proclr., vii. 777.— A. Juss., 

 in Ann. Sc. Nat., ser. 1, iii. 192, t. 12 ; in Diet. 

 cVBist. Nat., vii. 35. — Endl., Gen., n. 4626.— 

 Spach, Suit, a Buffbn, v. 68. — Payee, Organog., 

 374, t, 82.— IS. H., Gen., 640, n. 20.— H. Bn., 

 in Payer Fam. Nat., 388. — Liaupanlce Fetjill., 

 Journ., ii. 742, t. 31. 



z 2 



