APPENDIX 1349 



Page 710, after CTiamaesyce deltoidea, insert : 



13n. Chamaesyce pinetorum Small. Perennial. Branches villous-hirsute : leaf- 

 blades reniform to orbicular or ovate, 2-5 mm. long, pubescent: involucres fully 1 mm. 

 long, pubescent; glands green; appendages very narrow, even -edged: capsules fully 

 2 mm. broad, pubescent: seeds 1 mm. long, transversely wrinkled, yellowish. Differs 

 from C. deltoidea in the erect or ascending habit, the villous-hirsute foliage and the 

 pubescent involucres and capsules. 



In rocky pine lands, southern peninsular Florida. All year. 



Page 710, after CTiamaesyce albomarginata, insert: 



14a. Chamaesyce Hartwegiana (Boiss.) Small. Perennial, glabrous. Stem 

 much-branched at the base, the branches very slender, usually numerous, 5-18 cnii 

 long: leaf -blades suborbicular to obovate, 1-4 mm. long, obtuse or retuse, entire, 

 rounded or subcordate at the base, short-petioled : involucres campanulate, less than 

 1 mm. long, longer than the peduncles: glands transversely oblong or oval, minute; 

 appendages minute or obsolete: capsules globose-ovoid, less than 1.5 mm. long, 

 sharply 3-angled: seeds oblong, about 1 mm. long, nearly smooth. [Euphorbia Hart- 

 wegiana Boiss.] Differs from C. albomarginata in the smaller size, the smaller invo- 

 lucres with minute glands and minute or obsolete appendages and in the smaller 

 capsules and seeds. 



In dry soil, southern Texas and Mexico. Spring. 



Page 712, after Chamaesyce nutans, insert: 



30a. Chamaesyce hyssopifolia (L.) Small. Annual. Branches glabrous: leaf- 

 blades linear or narrowly linear-lanceolate, sometimes falcate, pale-green or glaucous, 

 shallowly toothed: involucres 11.5 mm. long, glabrous: glands 4, flat; appendages 

 orbicular to reniform, rather conspicuous: capsules about 2 mm. wide, glabrous: seeds 

 red or brown, fully 1 mm. long. Differs from Chamaesyce nutans in the narrow, 

 often falcate, leaf-blades. 



In rocky pine lands about the edges of hammocks, southwest of Miami, Florida. Also 

 in the West Indies. All year. 



Page 717, after Tithymalopsis Curtisii, insert: 



6a. Tithymalopsis Wrightii (T. & G.) Small. Perennial, glabrous below: 

 stems slender, usually several together, erect or nearly so, 2-4 dm. tall, with erect or 

 ascending branches: leaves alternate; blades narrowly linear, mostly 2-8 cm. long, 

 acute: involucres turbinate-campanulate, 1.5-2 mm. high, pubescent, as long as the 

 peduncles or shorter: glands transversely oblong; appendages white, petal-like, much 

 larger than the glands, undulate: capsules globose-ovoid, about 3 mm. high, pubes- 

 cent: seeds subglobose, nearly smooth. [Euphorbia Wrightii T. & G.] Differs from 

 T. Curtisii in the narrower leaf -blades and the pubescent involucres and capsules. 



In sandy or rocky soil, Texas. Spring. 



Page 720, after Tithymalus commutatus, insert: 



8a. Tithymalus brachycerus (Engelm.) Small. Perennial, light green. Stem 

 and branches erect or ascending, 2-2.5 dm. tall, each topped by a 3-5-rayed umbel: 

 leaves alternate; blades oblong, linear-lanceolate or linear, mostly 1-2.5 cm. long, 

 acute or acutish, entire: bracts subtending the umbel ovate: bracts of the rays oppo- 

 site, deltoid to renif orm-deltoid : involucres about 2 mm. long; glands crescent-shaped, 

 with short broad lobes: capsules depressed, 3.5-4 mm. in diameter, glabrous, the 

 lobes rounded: seeds ovoid or oblong-ovoid, 2 mm. long or nearly so, irregularly 

 pitted. Differs from T. commutatus in the narrower leaf-blades and the short- 

 horned involucral glands. 



In dry soil, Texas, New Mexico and northern Mexico. Spring. 



Page 721, after Tithymalus Missouriensis, insert: 



17a. Tithymalus Helioscopius (L.) Hill. Annual, glabrous or with scattered 

 hairs on the inflorescence-branches. Stem 1-3 dm. tall, topped, like the branches, 

 with a 3-5-rayed umbel: leaves few; blades spatulate to cuneate, 1.5-4 cm. long, 

 finely toothed near the rounded or emarginate apex: bracts subtending the umbel simi- 

 lar to the^ leaves: rays mostly 3-5, forked: bracts of the rays cuneate to oblong- 

 cuneate: involucres turbinate-campanulate, about 1.5 mm. high, short-peduncled : 

 glands transversely oval, about 0.5 mm. wide, unappendaged : capsules 3-lobed, about 

 4 mm. wide, the lobes rounded: seeds ovoid, nearly 2 mm. long, finely reticulated. 

 Differs from T. leiococcus in the 5-rayed umbel and the ovoid seed. 



In waste places and on roadsides, Quebec and Ontario to Illinois, Maine and North 

 Carolina. Naturalized from Europe. Spring to fall. 



