. Botanical gazette. Plants. 5« BOTANICAL of J?, abortivus, var. micranthus, my attention wcas called to a singu- lar structure in a head of carpels and occupying the normal position of an achenium. Upon examination it proved to be a flower of the following structure. The flower was raised on a short peduncle and subtended by a bract (b). The calyx (a) was very irregular, no two of the four sepals being of the same shape. The corolla was obso- lete. The stamens (d), eight in number, were nearly normal though in some the filament and anther seemed to blend. There were about ten carpel
. Botanical gazette. Plants. 5« BOTANICAL of J?, abortivus, var. micranthus, my attention wcas called to a singu- lar structure in a head of carpels and occupying the normal position of an achenium. Upon examination it proved to be a flower of the following structure. The flower was raised on a short peduncle and subtended by a bract (b). The calyx (a) was very irregular, no two of the four sepals being of the same shape. The corolla was obso- lete. The stamens (d), eight in number, were nearly normal though in some the filament and anther seemed to blend. There were about ten carpels (c) of normal shape excepting the beak was somewhat elongated. The accompanying figure shows the relation a of the parts, but is greatly magnified, d /\x the flower really being no longer than one of the carpels. The stamens and petals of the flower, in the head of which „,4 this structure occurred, had fallen. _ This variety of R. abortivus in this —-« region has the carpels in an elongated head, the length being often twice the diameter. There is another variety of this species (var. grandiflora) which grows upon cliffs _ high above the valleys, in which the petals far exceed the sepals in length, and the flower expands half an inch. Ranunculus fascicularis, Muhl., has in this region entire root- leaves and beginners invariably place it along with R. rhomboideus, if they use Gray's Manual, as this uroot leaves are not divided to the very base.''1 Is it unusual for this plant to have entire root-leaves, or is there some defect in the key?—F. L. Harvey, .Fa^tfmYfe, Ark. I A Synopsis of the North American Lichens :* Part I, comprising the , Cladoniei, and Coenogoniei: bv Edward Tuckerman, M. A.: Boston, S. E. Cassino, 1882— This book is ex- actly what is needed to give an impetus to the study of Lichens. Heretofore very few botanists have been attracted to their study from the great lack of convenient literature, but one can hardly turn over the handsomel
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