SYNOPSIS OF THE GENERA. 



many-leaved involucrum, Involucellum with four si 

 and eight little excavations. Calyx cup-shaped, thic 

 clothed with short rigid hairs. Receptacle with spiny 

 maceous bractece, shorter than the leaves of the involucn 



2. KNAU TIA, [Page 176,] Flowers in heads, surrounded h 



many- leaved involucrum. Involucellum compressed, v 

 four little excavations. Calyx cup-shaped. Fruit pla 

 upon a short stalk. Receptacle bristly. 



3. SCABIO'SA, [Page 177.] Flowers in heads, surrounded b; 



many-leaved involucrum. Involucellum nearly cylindri 

 with eight little excavations and a membranous plai 

 limb. Calyx with a limb consisting of about five brist 



** Perianth double. Corolla of one piece, superior. Seeds t 

 Leaves in Whorls. 



4. GA'LIUM, [Page 178.] Corolla wheel or bell-shaped, four 



five cleft. Fruit a dry indehiscent pericarp, with two c 

 and two seeds, not crowned by the calyx, 



5. RU'BIA, [Page 188.] Corolla rotate or campanulate, with fr 



three to five spreading segments. Fruit a succuh 

 smooth, two-lobed berry. 



6. SHERAK'DIA, [Page 189.] Corolla funnel-shaped with f 



segments. Fruit crowned with the persistent teeth of 

 calyx. 



7. ASPER'OLA, [Page 189.] Corolla funnel-shaped, with fr 



three to four segments. Fruit not crowned with the cal 



*** Perianth double. Corrolla of one piece inferior. Se 

 two, or many. 



8. EXACUM, [Page 192.] Calyx of one piece, with a four-c 



extremity. Corolla four-cleft salver-shaped, with a glob 

 tube. Anther bursting longitudinally. Stigma capit; 

 entire. Capsule one-celled, two valved. 



9. PLANTA'GO, [Page 192.] Corolla with four reflexed segmei 



Stamens very long. Capsule of two or four-cells, me 

 branous, two or many-seeded, bursting with a transve 

 incision. 



10. CENTUN V CCLUS, [Page 196.] Corolla of one piece, the ti 



swelling, limb four-cleft. Stamens short. Capsule of < 

 cell, many-seeded, bursting with a transverse incision. 



