276 



70. nyctaginej:. 



[Pisorda. 



each rib has 1-2 vertical rows of sticky, short, capitate glands, pedicels 

 divaricate 1 in., bracteolate. 



P. aZbci, Spanoge. China Lettace. Chi7iai 8 alit, Bombiij. Cultivated 

 about Indian bungalows as a pot plant. A native of the Andanians. 



Ordek 71. POLYGONACEiE. 



Herbs or rarely shi-nbs. Leaves usually alternate ; stipules scarious, 

 sheathing. Flowers bisexual, jointed on the pedicel. Pen'auth of 

 3-6, free or connate, persistent sepals^ imbricate in bud. Stamens 5-8, 

 opposite the sepals. Disk annular, glandular or 0. Ovary free, 2-4- 

 angled ; styles 1-3 ; ovule 1, basal. Fruit a hard nut, enclosed in the 

 calyx. Albumen floury or hard, horny. 



Stamens 12-18. Styles 4 1. Calligon"um. 



Stamens 8. Styles 3 .2. Pteeopyeum. 



]. CALLIGONUM, Linn. 



Kigid much branched shrubs. Leaves alternate, linear or 0, 

 sheathing ttipule short. Flowers solitary or few, 2-gexual. Sepals 5, 

 flat. Stamens 12-18. Ovary free, 2-4-angled ; styles 1-3, stigmas 

 capitate, ovule 1, or orthotrope. Fruit a 4-angled nut, winged, 

 hairy or bristly. Seed oblong, terete or 4-angled ; embryo central, 

 straight. 



C. polygonoides, Linn. Meissn. in DC. Prod. XIV. 1. 29 Fl. Br. I. 5. 



22. FJioh, pliog. Sind. 



Arid zone of Sind, Panjab and Rajputana. 



A glabrous, almost leafless shrub. Heartwood reddish-brown, very 

 hard. Chiefly used for fuel. Flowers pink, appear in May, and when 

 dry are gathered and eaten. 



2. PTEROPYRUM, Jaub. & Spach. 



Rigid shrubs. Lsaves small, alternate or fascicled, linear or 

 Bpathulate ; sheathing stipule short or 0. Flowers small, ochreate, 



2- sexual. Sepals 5. Ovary S-augled ; styles 3. Fruit a broadly 



3- winged, beaked nut. Seed beaked, base broad ; embryo excentrie, 

 cotyledons oblong, short. 



P. Oliveri, Jaub. & Spach. 111. PI. Orient. II. 9. t. 108 ; Fl. Br. I. 5. 



23; Wight Ic. t. 1809. Afghanistan, Persia, Sind. Fl. Sept., Oct. 



An excessively branched shru b with white branchlets. 



72. ARISTOLOCHIACE^. 



Herbs or shrubs, often climbing. Leaves alternate, entire or 

 3-5-lobed, exstipulate. Flowers bisexual, often large, solitary, 

 racemose or cymose. Perianth superior, regular or irregular, 

 3-lobed or tubular, lobes valvate. Stamens 6 or more, subsessile in 



