52 



A SYNOPSIS OF THE VEGETABLE KINGDOM. 



DD. Fr. drupaceous, glo- 

 bose or bladdery, 

 with a bai-d endo- 

 carp: e m I) r y o 

 curved ; cotyledons 

 variouslj' plicate or 



involute 5. Chixe.sk Nettle 



Thee Tribe. 

 DDD. Fr. not drupaceous, 

 compressed. ob- 

 lique at apex, dry 

 or thinly fleshy, 

 often winged or ap- 

 pendaged ; embryo 

 straight. cotyle- 

 dons flat or longi- 

 tudinally compli- 

 cate (i. Elm Tkibe. 



1. Nettle Tkibe oit Urtice.e. 



A. Hairs stinging 



B. Akene straight 1. Urtica. 



BB. Akene oblique 2. Urera. 



AA. Hairs harmless 



B. Female perianth .^-parted..?. Pilea. 

 BB. Female perianth 4-.")- 



parted 4. rELLiosiA. 



BBB. Female perianth tubular. ..j. Bceh.meria. 



2. Mulberry Tribe or More.e. 



A. The male fls. spicate, race- 

 mose or capitate ; female 



globose, capitate 



B. Female perianth dentate. 6. BRonssONETiA. 

 BB. Female perianth deeply 



4-fld 7. TOXYLO.N. 



AA. The fls. of either sex spi- 

 cate ; spikes short and 

 dense or long and lax. . . S. MoRt'S. 

 AAA. The fls. crowded on a 



fleshy receptacle 9. Dorstenia. 



,^. Bread Fri'it Tribe or Artocarpe.e. 



A- The receptacle fleshy, glo- 

 bose or ovoid, clearly in- 

 closing the numerous fls.. 

 but with a small mouth 

 which is bracteate in- 

 trorselv : the mouth is 



closed in fruit 10. Ficus. 



AA. The receptacle androgyn- 

 ous, male fls. numerous, 

 females solitary in the 

 center of the receptacle. . 11. Brosimum. 

 AAA. The receptacle unisexual, 

 with an involucre of 

 numerous bracts over- 

 lapping in series 12. Antiaris. 



AAA. The flower clusters uni- 

 sexual, with or without 

 3-4 bracts at the base, 

 in heads, spikes, rarely 

 in racemes or the 



female 1-fld 



B. Stamens 4 IS. Cudrania. 



BB. Stamen 1 14. Artocarpcs. 



4. Indian He.mp Tribe or Caxnabine.e. 



A. Stem climbing: Ivs. oppo- 

 site : embryo spirally in- 

 volute 15. HUMtLUS. 



AA. Stem not climbing: Ivs. al- 

 ternate or the lowest op- 

 posite : embryo curved. ..16. Cannabis. 



5. Chinese Nettle Tree Tribe or Celtide.b. 



A. Cotyledons very broad 



b. Style excentric : male 



perianth shortly 'obed.lT. Zelkova. 

 BB. Style central : male per- 

 ianth segments imbri- 

 cate 18. Celtis. 



6. Elm Tribe or Ulme.e. 



A. Fr. stalked, surrounded by a 



broad wing 20. Flmus. 



AA. Fr. not winged, everywhere 

 somewhat fleshy and mur- 

 icate 21. Planera. 



130. juglandace.t:. 



a. The fls. of either sex in 

 erect spikes, imbricate- 



bractate 1. Platycarta. 



AA. The staminate fls. in pendul- 

 ous catkins : pistillate 

 fls. spicate or subsolitary. 

 B. In germinating cotyledons 

 are borne above ground 



and remain green 2. Pterocaeya. 



be. In germinating cotyle- 

 dons remain inside the 



nut 



c. Husk at length split- 

 ting into segments : 

 nut smooth or 



angled 3. IIicoria. 



cc. Husk indehiscent : nut 

 wrinkled or sculp- 

 tured 4. Juglans. 



131. mvuicace-t;. 



A. Lvs. serrate or entire, not 

 stipulate : ovary sub 

 tended by 2-4 bractlets. . 1. Myrica. 

 AA. Lvs. pinnatifid stipulate: 

 ovary subtended by S 

 linear, persistent bract- 

 lets 2. Comptonia. 



132. CASUARINACE.E. 

 Sole genus 1. Casuarina. 



133. ErPHORBIACE.E. 



(Summary of Tribes, Ignoring exceptions and omit- 

 ting two tribes not in cultivation). 



Note. Opinions differ as to the rank of Buxus and 

 allied genera, some botanists giving them a separate 

 family, liu.rare<r. They are here treated as a tribe 

 of the Eupliorbiaceffi. 



A. Fls. simulating a single her- 

 maphrodite flower, but 

 composed of a calyx-like 

 involucre. Including num- 

 erous 1-antherod stami- 

 nate fls. and a single cen- 

 tral pistillate fl. : true 

 perianths very small or 



wanting i. Euphorbia Tribe. 



AA. Fls. distinct 



B. Raphe of ovules dorsal : 

 embryo various : sta- 

 mens opposite sepals or 



» 2. BuxDS Tribe. 



BB. Raphe ventral : embryo 

 with cotyledons niuch 

 broader than radicles. . 

 C. Ovules twin : all sta- 

 mens or outer ones 



opposite sepals 3. Phyllanthcs 



CC. O.'ules solitary: all sta- Tribe. 



mens or outer ones 

 alternate with sepals. 4. Croton Tribe. 



1. ErpHORBiA Tribe. 



A. Involucre irregular, oblique, 

 declinate or urn-shaped, 

 increased by a posterior 

 appendage, ■glandular 



side 



AA. Involucre regular or nearly 



1. Pedilanthus. 



