1042 
CRYPTOGAMIA. 
Class XXIV. 
2489. FUSA'RIUM. Link. Fusarium. Sp. 1—?. 
16603 tremelloides Cfj-ifi;. gelatinous very small 0 spring Pksh dead net tie stems Grev. cryp. fl. t. 10 
2490. EXOSPO'RIUM. Link. Exosporium. Sp. 1—?. 
16604 Tiliae Link Linden punctif. 0 sept. Bl linden branches Grev. crypt. 208 
Class II. EntophytjE. 
FUSI'DIUM. Link. Fusidium. 
■ Division I. Stilbosporei. 
Sp. 2—?. 
Wsh dead beech leaves Grev. crypt, fl. t. 102 
Ysh dead beech leaves Grev. crypt, fl. t. 102 
Sp. 1. 
Bl 
clover leaves 
Grev. crypt. 216 
16605 griseum Grev. grey effus. spo. 0 aut. 
16606 flavo-virens Dittm. yellow-green efFus. spo. 0 aut. 
2492. POLYTHRIN'CIUM. Kunxe. Polythrincium. 
16607 Trifolii Kunze Trefoil punctif. 0 aut. 
2493. STILBOSPO'RA. Hoffm. Stilbospora. % 4— ?, 
16608 profusa Grev. profuse spots 0 spring Br sycamore branchei Grev. crypt. 212 
16609 microsperma Per*, small grain, emerging 0 all sea. Bl dead beech bran. 
16610 ovata Pers. ovate dots 0 aut. Br dead branches Grev. crypt. 212 
16611 biloculata G?-^y. two-celled emerging 0 all sea. Bl dead furze branch. 
2494. SPORIDER'MIUM. Link. Sporidermium. Sp. 1—?. 
16612 atrum Link. dark parasitic 0 aut. Bl on species of Thelephora Grev. crypt. 194 
2495. N^MASPO'RA. Pfr5. N/emaspora. Sp. 3—?. 
16613 Carpini Sowerb. Hornbeam irregular 0 all sea. Bl dead hornbeam Sower, t. 376 
16614 filamentosa Grey, filamentous tortuous 0 all sea. Gr.Bl dead branches 
16615 Rosarum Greu. Rose slightly prom. 0 all sea. Bl dead rose branches Grev. crypt, fl. t. 20 
Division II. Hypodermia. 
2496. CYLINDROSPO'RIUM. Grev. Cylindrosporium. Sp. 1—?. 
16616 concentricum Grey, concent. speck-lik.hea. 0 my. jn. W cabbage leaves Grev. crypt, fl. t. 27 
2497. URE'DO. Pers. Uredo. Sp. 45—?. 
16617 Geranii Dec. Geranium scattered 0 sum. D.Br on Geranium Ivs. Grev. crypt, fl. t. 8 
16618 Ficariae .4/6. Pile-wort pulverul. 0 su.aut. D.Br under Ficaria Ivs. 
16619 suaveolens Per5. odoriferous fragrant 0 spr. su. Pu.Br Cnicusarvensislvs. 
16620 Polygonorum Bee. Polygonum spreading 0 su.aut. Pa.Br under Polygonum Ivs. Grev. crypt, fl. t. 80 
16621 Pi imulse Dec. Primrose scatterea 0 sum. Pa.Br under primrose Ivs. 
16622 CichoracearumDec. Syngenesious spots 
16623 Heraclei Grev. Cow-Parsnep patches 
0 su.aut, D.Br on Composite Ivs. 
0 sum. Pa.Br under Sphondylium Ivs. 
16624 bifrons Grev. two-sided 
16625 Riimicum Dec. Dock 
16626 Fabae Pers. Bean 
16627 Labiatarum Dec. Mint 
16628 intrusa Grev. depressed 
16629 oblongata Lk. oblong 
16603 
spots 0 aut. Pa.Br both sides of sorrel leaves 
small 0 aut. Br on Rumex leaves 
patches 0 aut. Pa.Br on bean leaves Grev. crypt, fl. t. 95 
pustular 0 aut. Y.Br on mint leaves 
scattered 0 aut. R.Br on Alchimella Ivs. 
pustular 0 sum. R.Br on Luzula leaves Grev. crypt, fl. 1. 12 
16604 
History, Use, Propagation, Culture, 
2489. Fusarium. The sporules are remarkable for their regulAY fusiform figure. 
2490. Exosporium. So called by Link, from 3|, oo the outside, and ir^ro^o;, a sporule ; on account of their 
external situation. Entire plant about one-third of a line in diameter, rarely larger, very gregarious, deep 
black, convex, bursting from beneath the epidermis, and appearing bristly under a pocket magnifier. Sporidia 
very crowded, elongated, obtuse at the apex, subopake, divided transversely about five times, fixed at the 
base upon a roundish dark-colored, solid receptacle, and there persistent. 
2491. Fusidium. A name with the same meaning as Fusarium. 
2492. Polythrincium. From ttoXv;, many, and B-^tyxoi, a little division. To the naked eye, this little plant 
appears in the form of numerous minute black spots of unequal size. Under the microscope, these spots are 
each found to consist of a number of distinct little roundish tufts of filaments, nearly equidistant from one 
another, and becoming smaller towards the circumference. The filaments are densely crowded, semitrans- 
parent, gradually thickening upwards, somewhat moniliform from the numerous articulations, erect, simple ; 
the sporidia oval, two-celled, scattered among the filaments. 
2493. Stilbospora. From ^iX<^oo, to shine, and <ra-a^«f, a sporule. Asci or sporules naked, imbedded in a black 
substance flowing from the branches of trees. 
