PAEWINIA AND BABTLINGI^. 179 



For the distinction of species the calyx-petals and gtaminodia 

 give abundance of constant characters, although, unfortunately, 

 not always sufficiently in accordance with habit or with each 

 other to serve for a systematic distribution of the species. The 

 three groups or sections which I should propose, are founded 

 chiefly upon inflorescence and involucral bracts or floral leaves, 

 accompanied, however, in the case of Schuer7nannia by a marked 

 difference in the calyx-segments. 



wn 



A. Hedaroma. Florimi capitula terminalia, saepius nutantia, 

 bracteis imbricatis coloratis involuerata. Calycis lobi minuti 

 V. rarius petalorum dimidium aequantes. 



a. Involucra campanulata v. ovoidea, florihus multo longiora et 



COS omnino includentia, 



* Folia sparsa oblonga marginihus recurvis. 



1. D, MACROSTEGIA. — GenetylUs macrostegia, Turcz, in Bull. Mosc, 

 1849, ii, 18; Kipp, in Journ, Linn, Soc. i. 51. — Hedaroma tulipifera, 

 LindL in Gard. Chron. 1854, 323. — Genetyllis tulipifera. Hook. Bot, 

 Mag. t. 4858,— W. Australia. 



2. D, HooKERiANA. — GeuetylHs macrostegia. Hook, Bot, Mag, t. 4860 

 non Turcz. — G. Hookeriana, Meissn. in Joum, Linn. Soc, i, 37, — W, 



T 



Austraha. 



3. D. FIMBRIATA. — GcnetylHs fimbriata, Kipp. in Joum, Linn. Soc, u 

 49; Hook, Bot. Mag. t. 5468.— W, Australia. 



** Folia opposita parva erecta concava, 



4. D. spficioSA, — GenetylUsspeciosa, ilfei5s».i» Joum. Linn, Soc. i. 36, 

 W. Australia. 



*** Folia sparsa ericoidea conferta Unearia semiteretia v. triquetra. 



5. D. Meissnebi.— Genetyllis Meissneri, Kipp. in Journ. Linn. Soc. i. 

 49.— W. Australia. 



6. D. HELic^RVSOiDES. — Genctyllis helicbrj soides, Meissn. in Joum, 

 Linn, Soc. i, 37. — W. Australia, 



7. D. (EDEROiDES.— Genetyllis cederoides, Turcz. in Bull, Mosc. 1849, 

 ii. 18. — W. Australia. 



b. Involucra patentiajlores vix excedentiu, v. eis breviora, 



* Folia sparsa conferta. Capitula muliifiora. 



G. yirescens. Meissn. in Joum. Linn. Soc. i. 38 



W 



jr2 



