DICHONDRACEAE 1079 
Ovary 1-celled oor in Nama). Fam. 4. HYDROLEACEAE. 
Ovary 3-celled : stigm 
Calyx-lobes imbrieated : corolla mostly 
. plaited in th : Fam. 2. CONVOLVULACEAE. 
Calyx-lobes valcate- corolla angrely 
convolute in the bud. Fam. 5. POLEMONIACEAE. 
Styles or stigmas wholly united. Fam. 6. SOLANACEAE 
Fruit drupaceous, or of 2 or 4 nutlets. 
Style or stigmas without a glandular ring. 
Fruit a group of 2 or 4 nutlets: style 
arising from between the lobes of th 
ovary. Fam. 7. BORAGINACEAE. 
Fruit drupacecus: style terminating the 
lobeless ovary. Fam. 8. ÉHRETIACEAE. 
le or stigmas with a glandular rin Fam. 9. HELIOTROPIACEAE. 
St 
STAMEN 4 and didynamous, or 1 or 2: corolla Tauaily 
Due and bilabiate. 
ripening in d be group of 4 nutlets, an 
ene or a dru 
Style ap apical e eg lobeless ovary. 
Fr uit dry or drupaceous, with 2 or 4 nut- 
Fam. 10. VERBENACEAE. 
n uit fleshy-capsular, with a solitary seed. Fam.11. AVICENNIACBAE, 
Ovary 1-celled. Fam. 12. PHRYMACEAE. 
Style arising between the i OER of the ovary. Fam.13. LAMIACEAE. 
Carpels ripening into 2 DE 
lacentae of the ovary ax 
Ovary 2-celled, or Due 3—5-celled. 
Corolla-lobes  imbricated : capsule not 
elastically dehiscent. Fam. 14. RHINANTHACEAE. 
Corolla-lobes convolute: capsules elasti- 
oe oe ent. Fam. 15. ACANTHACEAE, 
ary 1-celled. Fam. 16. PINGUICULACEAE. 
Ova 
Placentae of Ge ovary parietal. 
Herbs parasitic on the roots of other plants: 
leaves scale-like: foliage not green. Fam, 17. OROBANCHACEAE. 
Trees, Se or woody vines, or herbs, but 
parasitic: leaves not scale- like: 
foliage green 
m E capsule a E n Shrubs 
H Fam. 18. BIGNONIACEAE. 
SAT and a 1. celled | on “spuriously 
2- or 4-celled : herbs, seeds wingless. 
Anther-sacs parallel: fruit a 
nar, crestless dry capsule. Fam.19. PEDALIACEAE. 
Anther-sacs divergent: fruit a ven- 
tricose, fleshy coated capsule. Fam. 20. MARTYNIACEAE. 
Famity 1. DICHONDRACEAE — DicHonpra FAMILY 
or perennial creeping herbs. Leaves alternate: blades broad, 
ntire, long-peti rs axillary, solitary. Calyx of 5 slightly 
united als. Corolla rotate to ¢ nulate, 5-lobed. Androecium of 5 
stamens shorter than the corolla. Gynoecium of 2 distinct carpels. Styles 
basal. Capsules utricle- a 2 together.—Only the pir genus and 
5 species, widely distribut : 
1. A A Stems much -branched, 
often densely matted.. Flowers erect, greenish white. 
1. D. carolinensis Michx. Plan inconspicuously ^ 
pubescent: leaf-blades reniform to subo rbic , 5—20 
wide, deeply dos calyx-lobes mm. "long 
corolla- iig oe [D. repens Ries Fl.) ]— 
Ham pine em roadsides, low grounds, 
ites grassy p Coastal Plain, and au provinees, 
. to Tex, Ark., and bua (Or I.)—This plant 
has tw wo roles in suh latitudes itm may be a persistent weed in eT or 3t 
may be a lawn Sun itself, rbd where other lawn plants refuse to gro 
£5 
5 
Qu 
