330 



718. EUPHORBIA. 



Rays numerous. Seeds ovate, reticulate. Glands 

 retuse. Bracts and Floral L. ovate. L. crowded, 

 lineari-lanceolate (involuto-acuminate, Bert.) ; 

 lower deflexed. w. 6-S. Sandy shores. Narb. 

 Prov. Lig. K. Nap. 



68. Gupani. Rays 3-5, forked. Seeds 

 reticulate. Bracts rhombeo-ovate. L. coria- 

 ceous, somewbat remote, obversely lanceolate, 

 acute, 1-nerved ; lowest serrulate, w. 5-9. 

 Drepano and Segesta, Sic. — Beet, 



Ei. Leaves opposite ! 



69. Xiathjrris. Rays 4, dichotomous. 

 Glands borned. Caps, smooth. Seeds reticu- 

 late. Bracts oblongo-ovate, acute. L. decus- 

 sate, sessile, oblongo-lineax. b. 6, 7. Cult. 

 s. Sw. s. Tyr. Austrian shore. It. occ. Said to 

 spring up periodically in certain thickets in 

 England. 



719. MERCURIALIS. 



1. tonaentcsa. Woody. L. ovate, tomen- 

 tose. Caps, liirsute. Fertile Fl. on short 

 stalks, w. 9, 10 (6, 7, Lois.) Lang. Rous. 

 Corbieres. 



2. elliptica. Woody. Stem brachiate. L. 

 lanceolate, serrate, quite smooth, vsr. Summer. 

 Mountains. Cors. 



3. perensiis. Stem simple. L. stallted, 

 ovato-lanceolate. Fertile Fl. on stalks much 

 longer than themselves, p. 4, 5. Shade. 



4. ovata. Stem simple. L. ovate, nearly 

 sessile. Fertile Fl. on stalks much longer than 

 themselves, p. 4, 5. Woody hills, s. G. 

 Perhaps a var. of Sp. S. 



5. annua. Stem branched. L. ovato-lan- 

 ceolate. Fertile Fl. nearly sessile, a. 6-9. Rich. 



XCIII. URTICE^. 



Perianth inferior, 3- 4- or 6-parted ; sometimes, in the fertile flowers, undivided. Sta- 

 mens inserted in the base of the perianth, and opposite to its divisions. Ovary 1-2-celled. Seeds 

 solitary. Stigmas 1 or 2. Fruit not bursting. L. with detached a.nd generally caducous stipules 



720. URTICA. 



A. Motioscious. 



1. rupestris. Spikes simple, shorter than 

 L. -stalk ; with barren, fertile, aud complete 

 flowers. L. ovate, acuminate, coarsely serrate, 

 with 4 stipules to each pair. vsr. 4, 5. Vol- 

 canic rocks. MiUteUo, Sic. 



2. Tirens. Spikes simple, shorter than 

 L.-stalk, complete. L. elliptic-ovate, acute, 

 coarsely serrate ; with 4 stipules to each pair. 

 a. 6-10. Waste. 



3. neglecta. Spike simple, complete ; 

 upper longer than L.-stalk. Rachis not di- 

 lated. L. ovato-elUptic, acute, sharply ser- 

 rate ; vnth 2 stipules to each pair. a. 11-5. 

 Rich. Sicily. 



4. xnembranacea. Spikes simple, sepa- 

 rate : ban-en longer, fertile generally shorter, 

 than L.-stalk. Rachis dilated. L. ovate, 

 acute, coarsely toothed ; with 2 stipules to 

 each pair. a. 2-4. TJncult. s. Fr. It. 



5. pilulifera. Barren clusters pauicled. 

 Fertile Fl. in globular heads. Seeds tubercled. 

 L. ovate or cordate, inciso-serrate. a. 6, 7- 

 Waste, m. aud s. Eur. 



)8. balearica. Stems and L.-stalks pm-plish. 



6. Dodartii. BaiTcn Clusters pauicled. 

 Fertile Fl. in globular heads. Seeds nearly 

 smooth. L. ovate or ovato-lanceolate, nearly 

 entire, a. 6-8. Copford in Essex. Upwell 

 in Norf. Wisbeach in Cambridgeshire. — Bab. 



K. Bicecious. 



7. dioica. Spikes branched. L. all cor- 

 date, coarsely sen-ate ; upper prolonged. Root 

 creeping, p. 7, 8. Waste. 



8. hispida. Spikes branched. Lower L. 

 orbicular, cordate at base ; upper somewhat 

 doubly serrate, p. 6, 7. Prades in Rous. 

 Cors. Sic. 



9. sicula. Spikes branched; the fertile 

 pendulous. L. ovate (not cordate), acumi- 

 nate, sharply serrate, smaller. Plant slender, 

 woody at base. p. -w. 5, 6. Shady hills. 

 Sicily. — Guss, 



721. PARIETARIA. 



1. oMcinalis. L. ovato-lanceolate, often 

 acuminate, triple-nerved, with peUucid dots. 

 Cymes in pairs, bifid. Bract digitate. Segm. 

 ovate, obtuse, p. 5-9. Walls and banks. 



