Mr. J. Miers on the Calyceracese. 351 



branch, its leaves, thus approximated, assume a campanular in- 

 volucral form, being accreted at their base into a broad shallow 

 cup supported upon a short stipe, with a border of foliaceous 

 segments ; and it contains about seven distinct capitella, which 

 are analogous to the short scapes, each bearing a monocephalous 

 head, seen in each axil of the stem in the typical species, but in 

 this instance all are brought close together by the depression of 

 the stem ; each capitulum is supported upon a short stipe, and 

 consists of an involucel of five to seven linear leaflets containing 

 a solitary spined achsenium in the centre, surrounded by seven 

 or eight other achaenia which are quite unarmed, and all are 

 supported by a small epaleaceous receptacle. Thus considered, 

 the plant exhibits all the peculiar and essential characters of 

 Anomocarpus. 



I have united with this genus the Leucocera of Turczaninow, 

 founded upon the Boopis leucanthema of Pbppig, which agrees 

 with Anomocarpus in all essential respects, except that the re- 

 ceptacle is more convex, almost conical, and charged with per- 

 sistent paleae, after all the achaenia have fallen off, as in Boopis, 

 These characters are hardly sufficient to claim a distinct generic 

 rank for Leucocera — a name that would have been ill applied, as 

 the spines of the achasnia are of a yellowish brown colour. The 

 great difference in the form of the achaenia was scarcely recog- 

 nized by Turczaninow — a feature better characterized by the 

 name Anomocarpus, which I had long previously employed for 

 the more legitimate species. 



Anomocarpus, nov. gen. — Involucrum gamophyllum, campanu- 

 latum, plus minusve profunde partitum, membranaceum, 

 plurinerve, nervis 15-21, parallelis, laciniis 5-7, triangulari- 

 bus aut lineari-oblongis, acutis, erectis, interdum demum 

 auctum et explanatum. Receptaculum minimum, areolatum, 

 nudum, rarius parce paleaceum. Flores ssepius pauci, inclusi, 

 omnes foecundi. Calyx ovario adnatus, 5-angulatus, in flori- 

 bus radii limbi lobis abortivis, in unico centralibus (ssepe unico) 

 lobis 5, sequalibus, liberis, ovatis, acutis, denticulatis et mu- 

 cronatis, erectis, demum patentibus et excresCentibus. Corolla 

 omnes consimiles, tubo infundibuliformi imo coarctato, cum 

 ovario articulato, limbo breviter campanulato 5-partito, lobis 

 acutiusculis, crassiusculis. Stamina subexserta; filamenta 

 imo in tubum brevissimum syngenesia, medio tubi corollse 

 inserta, apice longiuscule libera, et conniventia ; antherce ob- 

 longae imo in tubum accretse, in floribus radii ssepe polline 

 destitute. Ovarium oblongum, 5-angulatum, imo ad calycem 

 adnatum, supra medium liberum, hinc conicum, 5-sulcatum, 

 1-loculare, 1-ovulatum; ovulum funiculo brevi ex apice pen- 



