282 SCROPHULARIACE^. (fIGWORT FAMILY.) 



Synopsis. 



I. ANTIRRHINIDEiE. Upper lip of the corolla covering the lower in 



the bud (with occasional exceptions in Mimulus, &c.). Pod usually 

 septicidal. 



Tribe I. VERBA ^C£]^. Corolla nearly wheel-shaped. Plowera in a simple spike or 

 raceme. Leaves all alternate. 



1. VERBASOUM. Stamens 5, all with anthers, and 8 or all of them with bearded filaments. 



Tribb II. AWTIRRHINE^. Corolla tubular, with a spur or sac at the base below, 

 the throat usually with a palate. Pod opening by chinks or holes. Flowers in simple 

 racemea or axillary. Lower leaves usually opposite or whorled. 



2. LINAEIA. Corolla spurred at the base ; the paJate seldom closing the throat. 



8. ANTIRRHINUM. Corolla merely saccate at the base ; the palate closing the throat. 



Tribe m. CHEIaO^EJE, Corolla tubular, or deeply 2-lipped, not spurred nor saccate 

 below. Pod 2-4-valved. Leaves opposite. Inflorescence compound; the flowers in 

 small clustera or cymes in the axils of the leaves or bracts ; the clusters spiked or 

 racemed. (Stamens 4, and the rudiment of the fifth.) 



4. SCROFHULARIA. Corolla inflated, globular or oblong, with 4 short erect lobes and one 



spreading one. Rudiment of the sterile stamen a scale. 



5. COLLINSIA. Corolla 2-cleft, the short tube saccate on the upper side ; the middle lobe of 



the lower lip sac-like and enclosing the declined stamens. 



6. CHELONE. Corolla tubular, inflated above. Sterile stamen shorter than the others. 



Seeds winged. 



7. PENTSTEMON. Corolla tubular. Sterile stamen about as long as tbe rest. Seeds wingless. 



Tribe IV. GRATIOLEj.^. Corolla tubular, not saccate nor spurred. Pod 2-vaIved. 



Inflorescence Mmple ; the flowers single in the axil of the bracte or leaves, the peduncles 

 bractless. Leaves all or the lower opposite 



# Stamens 4, all anther-bearing and oimilar. 



8. MIMITLUS. Calyx prismatic, 6~angled, 5-toothed. Corolla elongated. 

 9 CONOBEA. Calyx 5-parted, the divisions equal. Corolla short. 



10. HERFESTIS. Calyx 5-parted, unequal, the upper division largest. Corolla short. 

 * * Anther^bearing stamens 2 : sometimes also a pair of sterile filamente. 



11 GRATIOLA. Calyx 5-paTted. Stamens included ; the sterile pair short or none. 



12 ILYSANTHES. Calyx 5-parted. Stamens included ; the sterile filamente protruded. 

 13. HEMIANTHUS. Calyx 4-toothed. Sterile filamente none, Corolla irregular. 



II. RHINANTHIDEiE. Under lip or the lateral lobes of the corolla 



covering the upper in the bud. Pod commonly loculicidal. 



Tribe V. SIBTHORPIE.^. Corolla wheel-shaped or bell-shaped. Leaves alternate, 

 or {with the axillary flowers) fascicled in clusters. 

 14 LIMOSBLLA. Calyx 5-toothed. Corolla 5-cleft. Stamens 4. Leaves fleshy. 



Tribe YI. DIGITALEjE T Corolla tubular or somewhat bell-shaped. I^eaves alter- 

 nate. Flowers in a spike or raceme. 

 IB. SYNTHYRIS. CaJyx 4-parted. Corolla irregular. Stamens 2, rarely 4. 



Tribe VU. VERONICE^. Corolla wheel-shaped or salver-shaped. Stamens not ap- 

 proaching each other. Leaves mostly opposite. Flowers in racemes. 

 16. VERONICA. Calyx 4- (rarely 3- B-) parted Corolla somewhat irregular. Stamens 2. 



Tribe YIII. BUGHNERE.^. Corolla salver-shaped. Stamens 4, approximate In 

 pairs : anthers 1-celled. Upper leaves alternate. Flowers in a spike. 



