18 CXXIX. ILLECEBRACEx^. [Paronychiem, 



farinaceum cingena, cotyledonibus compressis, radicula supera. — Herba annua, humilis, 

 rigidaj diffuse dichotome ramosa, ramulis crassiusciilis nodosis. Folia oppositaj carnosula, 

 linearia, integerrinia ; stipulse scariosse. Capitula sphserica, 4-7-flora, fructifera erinacea, 

 cum pedunculo brevissinio articulato decidua. 



Species 1, Africse borealis et Asise occidentalis ab ins. Capitis Viridis usque ad Perslam incola. 



Tribus III. Pteranthe^. 



13. PterantHus, Forsk. Fl. Aflg. Arab. 36. (Louichea, VHer. Stirp. iVou i. 135, t. 05.) 



— Flores ad apicem pedunculi foliacei cavi obcordati 3-ni, medius perfectus, laterales 

 sa^pius iinperfecti, foliia floralibus pinnatipartitis iuvolucrati. Periantbium berbaceum, 

 compressum, 4-partitum ; segmenta erecta, lineari-oblonga, rigida, 2 exterioribus dorso 

 carinatis et superne ala spinulosa instructia, interioribus minoribus carinatis spinoso- 

 niucronatis. Stamina 4, subliypogyna, filainentis filiformibus basi in cupulaiu connatia ; 

 antherae oblongae ; staniinodia 0. Ovarium obovoideum, in stylumfiliformeuiattenuatum, 

 stiguiatibua 2 brevibus ; ovulum erectum, semi-anatropum, funiculo brevi. Utriculus 

 pt'i'ianthio inchisiis, obovoideus, .siibcorapressus, tenuissime mcnibranaceus. Semen 

 obovoideum v. clavatum, erectum, testa membranacca, chalaza magna laterali ; embryo 

 magnua, lateralis, albumini parco applicitus, cotylodouibus oblongis plano-convexis, 

 radicula infera. — Herba liumiiis, annua, carnosa, glabra, di-tricliotome ramosa, ramis 

 rigidis. Folia opposita et pseudo-verticillata, lineariaj obtusiuscula, carnosula ; stipulj:e 

 minutse. Flores virideSj bracteolis scariosis. 



Species 1, Africse borealis, ins. Cypri, Arabia;, Syrise et Persise australis, incola. Boiss. FL 

 Or. 1.752. G(Ert)i, f.Friid. iii. U 213. Lam. Illustr. t. 764. Sihth. Fl. GrcEc. t. 153 {Cam- 

 jphorosma). 



14. Cometes, iimi. Ma?i<. 4, ^i. 1243. {^?Cii\?^,Ii. Br. inSalt. Ahyss.ZlQ. Ceratonychia, 

 Ed'j)v. in Jmmi. As. Soc. Beng. xvi. 1215.)— Flores ad apicem pedunculi communis 3-ni, 

 medius perfectus, laterales imperfecti, foliis floralibus plumoso-multipartitis demum 

 longissimis et squarroso-divaricatis involucrati. Perianthium herbaccimi, 5-partitum ; 

 aegmenta erecta, lineari-oblonga, dorso sub apice aristata, marginibus membranaceis. 

 Stamina 5, subliypogyna, staminodxis totidem petaloideis alternantia, filamentis subu- 

 latia basi in cupulam connatis.; antherre didymee. Ovarium ovoideo-lanceolatum, 

 in stylum iiliformem curvum attenuatum, stigmatibus 3 minutis ; ovulum erectum, 

 semi-anatropum, funic^ilo brevi. Utriculus perianthio inclusuc, obovoideus, tenuiter 

 membranaceus. Somen obovoideum, erectum, testa membranacea, chalaza magna 

 lakerali ; embryo magnus, dorsalis, albumini parco applicitus, cotyledonibus oblongis plano- 

 convexis, radicula infera.— Herbai humiles, annuse, pubcscentes v. scabrid;o, niulti- 

 caules, dicbotome ramoste. Folia opposita v. pseudo-vei-ticillata, sessilia v. in petiolum 

 angustata, elliptica lanceolata v. lineai'ia, aristato-acuminata, integerrima ; stipulfe 

 minutse, aetaceee. Flores sessiles, cum pedunculo immutato terminal! decidui, ihvolucris 

 setosis ferrugineis ; pedunculi solitarii v, cymoso-paniculati, fructiferi cum bracteis in 

 capitula coadunati. Semina 2 v. 3, in fascicido germinantia. 



Species 2, Afriore boreali-orientalis, Orientis et Indise maxime occidentalis incolse. Soiss. Fl. Or. 

 i. 752. Burm. Fl. Ind. t. 15. Wall PL As. Rar. i. t. 17, 18. Wight Ic. t. 1785. 



15. Dicheranthus, WM in Amh. 8c. Nat. ser. 3, v. 27, t, 2.— Flores ad apicem 

 pedunculi communis 3-ni, medius perfectus, laterales ^ v. deformati, bracteis rigidis 

 mucronatis stipati. Perianthium herbaccum, 5-partitmn ; segmenta lineari-oblonga, 

 late scariosa, erecta, apicibua ariatato-acuminatis patentibus ; florum lateralium segmenta 

 varia, seepiua inrequalia, obtusa aristata v. in appendicem orbicnlarem producta. 

 Staiiima 2-3, hypogyna, filamentis filiformi-subulatia ; anthoraj lineaii-oblongge ; stami- 

 nodia 0. Ovaritun ellipsoideum, 3-gonum, in stylum strictum filiformem attenuatum, 

 stigmatibus 3 minutis ; ovulum erectum, semi-anatropum, funiculo basilari. Utriculus 



