UMBELLIFER^. (PARSLEY FAMILY.) 329 



* Umbels simple. 



Tribe I. HYDROCOTYIiK^. Fruit flattened laterally. 



Tribk II. SANICUIiK^. Fruit terete or flattened laterally or dorsally. 



* * Umbels compound. 



t Primary ribs only prominent, (except in Amminece, Coriandrum, Bifora and SUer). Viitct 

 rarely wanting in the intervals. 



{ Fruit (except in afeto Smymea) flattened laterally. 



Tribe in. EOHINOPHORE^. The central flower of umbel fertile. The ray 

 flowers staminate, pedicelled. 'I he fruit enclosed in an involucre of the sterile flowers. 



Tribe IV. SMRYNE.E. Fruit nearly globular, broad-ovate, oblong-linear, or twin, 

 rarely terete or slightly flattened at back, (Secondary ribs visible in Coriandrum and Bifora). 

 Inner surface of albumen deeply grooved, rarely concave. 



Tribe V, AMI^INK.E. Fruit ovate, oblong, or twin, rarely short-linear. Secondary 

 ribs visible. Inner surface of albumen flat, rarely concave. 



Tribe VI. SCANDICINK^. Fruit linear, usually beaked, rarely oblong. Inner 

 (•ace of albumen grooved, rarely concave. 



J X Fruit flattened dorsally, or more or less convex or terete. 



Tribe VII. SESELINE^E, Fruit terete or nearly so. Inner face of albumen flat or 

 concave. Lateral ribs distinct, or united into a thickened but not dilated margin. 



Tribe VIII, PEUCEDANE.E. Fruit ovate, lenticular, or oblong-elliptical, flattened • 

 Secondary ribs (except in Siler). Inner face of albumen flat or concave. Lateral ribs dila: 

 ted into a wing, or broad, tumid margin. 



1 1 Intervals over the vittce thickened, or furnished with secondary ribs. 

 TaiBK IX. CAUCAIilNE^. Fruit nearly cylindrical, or flattened laterally, or dorsal 

 ly. The primary and secondary ribs terminating in lobed crests, or bristles, or prickles, or rare 

 ly entire ; the secondary more prominent than the primary. 



Tribe X, liASERPlTIE^E. Fruit nearly terete or dorsally flattened. Primary ribs 



filiform, rarely winged, secondary all, or only the lateral, broad-winged. 



Tribe I, HYDI8.OCOTYL.EiE. 



1. HYI>ROCOTYL.E. Water- Pennywort . 



Calyx-teeth obsolete. Petals ovate, entire, acute, not incurved. 

 Mericarps destitute of vittse, the ribs 5, filiform, the keel and lateral 

 ones often obsolete, the intermediate arched. Carpophore undivided — 

 Perennial, prostrate, tender herbs, rooting at joints. 



H. natans, Cyr. 11 Glabrous. Leaves long-petioled, rouiid- 

 reniform, with narrow sinus, obtusely crenate-lobed, palmately nerved. 

 Peduncles short, thick. Flowers 5-6, short pedicelled, capitate-umbel- 

 led; fruit torn, the mericarps obscurely ribbed — Summer — Ditches; 

 Huleh. 



Tribb II. SANICUIiE^. 



* All the flowers sessile. 



2. ERYNGIUM. The flowers hermaphrodite, in dense heads. Herbs, usually prickly. 



* * All the flowers, or at least the staminate, peduncled. 



t The ovary 2-celled. 



3 ACTINOLEMA. The flowers enclosed in a large involucre. Ribs cristate-dentate. 



4. SANICULA. The flowers enclosed in a small involucre. Fruit covered with hooked 

 prickles, 



1 1 The ovary 1-celled, 1-seeded. 



5. LAGCECIA. Heads globular, many-flowered. Fruit bristly. Leaves pinnate. 



2. ERYXOHJlfl, L. Button Snake-Root. SUnddb. 



Flowers all hermaphrodite. Calyx-teeth 5, acute, stiff. Petals 

 erect, connivent, notched, with a long tip bent inward. Fruit ovoid, 



45 



